The Secret Adversary Playbook 1 — Two Unemployed Young People
A Playbook Series Adaptation
Summary: In post-war London, two childhood acquaintances reunite by accident and discover they are both broke, directionless, and hungry for adventure. What begins as a joke over tea becomes a business proposition — and the first shadow of a conspiracy that will consume them both.
Source work: The Secret Adversary (1922) by Agatha Christie
Public domain status: Confirmed public domain in the United States. Christie died 1976; the work entered the US public domain in 1998.
Estimated source word count: 75,852 — basis: Reading Length calculated count, corroborated by Textopian chapter analysis
Target words per Playbook: ~7,500 (8 chapters × ~950 words)
Calculated number of Playbooks: 10 (75,852 ÷ 7,500 = 10.1)
Note: Count may be adjusted by ±1 Playbook if narrative pacing requires it, with stated reason in the affected post.
Reference: Project Gutenberg eBook #1155
Playbook 1 — Two Unemployed Young People (this post)
Chapter I — The Dover Street Meeting
The first thing Prudence Cowley noticed about Thomas Beresford was that he had grown considerably less annoying since she had last seen him. The second thing she noticed was that his coat had been mended at the elbow with thread that did not match, and that he was trying very hard not to let her see it.
They met on the steps of Dover Street Underground Station on a wet Tuesday afternoon in early May, 1919. Tuppence — she had been Tuppence since she was six years old and had refused to answer to anything else — was on her way to an interview for a position as a lady’s companion. Tommy was on his way to nowhere in particular. He had been demobilized from the army six months earlier, had spent four of those months living on the generosity of an aunt in Harrogate, and had spent the last two attempting to convince various London firms that a man with a good class degree and no practical skills was exactly what they needed. The firms had not agreed.
The rain had been falling since morning, a thin, persistent drizzle that seemed less like weather than like a condition of the city itself. Tuppence had walked from her lodgings in Bloomsbury because the bus fare was fourpence she could not spare. Her shoes — good shoes, bought two years earlier before the war had ended — had let in water at the seams. She was aware of this with a kind of dull resignation. There were larger problems than wet feet. There was the fact that she had three pounds and eleven shillings to her name. There was the fact that the advertisement had said the position was still open but that several other applicants had already been interviewed. There was the fact, which she did not like to admit even to herself, that she was not certain she wanted the job at all.
“Tuppence!” Tommy said, and then, remembering that she had always hated the nickname when adults used it, added, “Miss Cowley.”
She turned. For a moment she did not recognize him. Then something in the set of his shoulders, in the slightly apologetic angle of his head, resolved itself into the boy she had known at a dozen children’s parties and one uncomfortable summer holiday in Cornwall.
“Tommy Beresford,” she said. “You look terrible.”
“Thank you.”
“I mean it in the nicest possible way. You look like a man who has been living on tea and toast for a fortnight.”
“Three weeks, actually.” He grinned, and for a moment he looked exactly as he had at fourteen, when they had been thrown together at a children’s party and had spent the entire afternoon plotting to steal the hostess’s pet rabbit. They had not stolen the rabbit. They had been caught, scolded, and made to apologize. It had been, Tuppence reflected later, one of the happiest afternoons of her childhood.
“I don’t suppose you’d consider having tea with a destitute ex-officer? I can’t afford to pay for mine, but I’m excellent company.”
Tuppence considered him. She was twenty-two, had served as a nurse in a military hospital during the last year of the war, and had discovered upon demobilization that the world had very little use for a young woman with a talent for organization and no family connections. She had answered advertisements for everything from secretary to shop assistant to companion to an elderly invalid in Bournemouth. The invalid had been the only one to reply. The invalid had also, according to the letter, required her to be “of a cheerful disposition and willing to read aloud for four hours daily.” Tuppence had been willing. She was still waiting to hear back.
“I’ll have tea with you,” she said. “But I’m paying for my own. I have exactly three pounds and eleven shillings to my name, and I intend to make it last until Friday.”
Chapter II — The Lyons Corner House
They walked together along the Strand, past shop windows in which spring hats were displayed on stands of pale wood, past a man selling newspapers whose headline announced a debate in the House of Commons about the terms of the peace treaty, past a queue of women outside a food office waiting for ration books. The city was crowded and gray and full of people who seemed to be moving with purpose, which made Tuppence feel her own purposelessness more acutely. She had spent the war being useful. She had spent every day of it doing something that mattered, holding the hands of dying men, writing letters to their mothers, making herself indispensable in a hundred small ways. And now the war was over and no one needed her anymore.
They found a Lyons Corner House on the Strand, where the tea was cheap and the waitresses did not look at you as though you were about to ask for credit. It was warm inside, and smelled of bread and sugar and wet wool. The room was crowded with the after-lunch trade — clerks and typists and a few women in the uniform of the Women’s Army Auxiliary Corps, all talking at once, all part of the great machinery of the city that kept running whether or not any individual within it had a place.
A waitress in a black dress and white apron showed them to a table near the window. The tea came in a brown pot with a chipped spout. The biscuits were on a plate that had been washed so many times the pattern had worn away to ghostly outlines. Tommy ordered a pot of tea and a plate of biscuits. Tuppence, who had not eaten since a very thin breakfast, ate three biscuits before either of them said anything of substance.
“So,” Tommy said finally, “what have you been doing with yourself since the war ended?”
“Looking for work. Failing to find it. You?”
“The same. Only with more letters of rejection. I have a collection. I could show you, but I’d have to go home and get them, and I haven’t got the bus fare.”
Tuppence laughed. It was not a happy laugh, but it was genuine. “It’s absurd,” she said. “We won the war. Everyone said we won the war. And here we are, two perfectly capable people, unable to find anyone willing to pay us a living wage.”
“Capable is the problem,” Tommy said. “I’m too qualified for the jobs that exist and not qualified enough for the jobs that don’t. I sat an examination last week for a position as a clerk in a shipping firm. There were forty other men in the room. Most of them had been officers. Two of them had been colonels.” He stirred his tea, which was already the color of weak dishwater. “A colonel. Applying for a clerk’s job. That’s what we’ve come to.”
“What happened to the colonels?”
“They didn’t get it. Nor did I. A boy of nineteen with a commercial diploma got it. He’ll be very good at it, I expect. He’ll work there for forty years and retire with a pension and never once have to think about the Somme.”
Tuppence heard the bitterness in his voice and did not comment on it. She understood it. She felt it herself, though she did not often let herself feel it. The war had taken four years of her life and everyone else’s, and the peace seemed to have taken the rest. The men who had fought were supposed to come home to a land fit for heroes. Instead they had come home to a land that did not know what to do with them.
The Lyons Corner House was filling up with the after-work crowd: shop girls in cheap hats, city men in bowler hats, a few demobilized soldiers in civilian clothes that did not quite fit. The noise rose and fell around them. Tuppence looked at the room and felt a sudden, sharp anger. Not at any person, but at the arrangement of things.
Chapter III — A Proposition Over Biscuits
“I have an idea,” she said.
“For a job?”
“For a business. We go into business together. You and I. We advertise. We offer our services to anyone who needs them.”
Tommy put down his cup. “What services?”
“Whatever’s needed. We’re young, we’re presentable, we’re not stupid. We can find things out. We can go places. We can ask questions that other people can’t ask.” She leaned forward, her eyes bright. “There are people in this city who need things done that they can’t do themselves. Things that aren’t quite — well. Things that a private detective might do, only not a private detective. Something else.”
“You’re suggesting we become spies for hire.”
“I’m suggesting we become useful. For a fee.”
Tommy did not laugh at her. This was the first thing Tuppence noticed, and it mattered more to her than she would have admitted.
“You’re serious,” he said.
“I’m always serious when I’m desperate. It’s one of my best qualities.”
He thought about it. She could see him thinking, which was one of the things she had always liked about Tommy Beresford. He had a slow, deliberate mind. He did not pretend to understand things he did not understand, and he did not dismiss ideas simply because they were unusual. At fourteen he had been the kind of boy who would help you dig a tunnel and then carefully calculate whether the ceiling was likely to collapse. At twenty-four he looked like a man who had spent too long in trenches and not long enough in sunlight, but the calculation was still there behind his eyes.
“The Young Adventurers, Ltd.,” he said.
“What?”
“That’s what we’ll call it. The Young Adventurers, Ltd. We’ll put an advertisement in the Times. ‘Two young adventurers for hire. Willing to do anything, go anywhere. Accept no unreasonable offer.’”
Tuppence stared at him. Then she laughed — the same not-quite-happy laugh as before, but warmer. “You’re mocking me.”
“I’m not. I’m improving. If we’re going to be absurd, we should be magnificently absurd.” He reached for another biscuit. “The thing is, Tuppence, you might actually be right. Not about the advertisement — nobody would answer it. But about the principle. There’s a gap in the market. A lot of people came back from the war with skills that don’t transfer. Languages. Observation. The ability to keep their heads when things go wrong. And there are people in London who need those skills and don’t know where to find them.”
Chapter IV — The Young Adventurers, Ltd.
“You’re talking as if you believe me.”
“I’m talking as if I have nothing to lose. Which is true. I have exactly seven shillings and fourpence in the world. If I don’t do something interesting soon, I will be forced to go back to Harrogate and accept my aunt’s offer of a position in her husband’s boot factory.”
“What’s wrong with boot factories?”
“Nothing, except that I would rather be shot.”
They sat in the Lyons Corner House until the waitress began to hover, making it clear that the table was needed. Outside, the rain had stopped, and the wet pavements reflected the streetlamps in long smears of yellow light. The evening was coming on quickly, the way it did in London in May, the daylight lingering just long enough to make the darkness feel sudden. Tuppence pulled her coat — a good coat, but three years old and beginning to show it — more tightly around her shoulders.
“There’s a flat,” she said. “In Sloane Square. My aunt’s. She’s gone to live with her sister in Cheltenham and she’s let it to me for almost nothing. Two rooms and a kitchen. I was going to take it anyway, but if we’re going into business together, you can use the second room as an office. It’s got a desk. A very ugly desk, but a desk.”
“Tuppence Cowley,” Tommy said, “are you offering me a job?”
“I’m offering you a partnership. The Young Adventurers, Ltd. Equal shares. We split the profits — if there are any — and we split the disasters.”
“And if there are no profits?”
“Then at least we’ll have been interesting.”
He held out his hand. She shook it. His grip was firm and warm, and for a moment neither of them let go.
“The Young Adventurers, Ltd.,” he said. “I’ll come by tomorrow. Nine o’clock?”
“Make it ten. I like to sleep late when I’m unemployed.”
She walked home through streets that were beginning to empty, the shop windows dark, the pubs just opening their doors to the evening trade. She was aware of a strange lightness in her chest, a feeling she had not had in months. It was not hope, exactly. It was something closer to the anticipation of a good game. She had spent so long being sensible, so long applying for jobs she did not want and being rejected by people she did not respect. It was a relief to do something foolish. It was a relief to do something at all.
Chapter V — The Flat in Sloane Square
The flat at 17 Sloane Square was not, strictly speaking, in Sloane Square. It was in a narrow street off it, above a tobacconist’s shop, reached by a staircase that creaked in three distinct places and smelled faintly of cabbage. But Tuppence had decided that “Sloane Square” sounded better than “a turning off Sloane Square,” and she was not a woman to let accuracy interfere with presentation.
Tommy arrived at ten o’clock the following morning, having walked from his lodgings in Pimlico because he had calculated that a bus fare was a biscuit he could not afford to miss. He found Tuppence in the sitting room, which was furnished with a horsehair sofa, two chairs that did not match, and a quantity of dust that suggested the aunt had not been a thorough housekeeper. The wallpaper was a faded pattern of cabbage roses, the kind of decoration that had been fashionable twenty years earlier and had been quietly going out of style ever since. There was a fireplace, unlit, with a clock on the mantelpiece that had stopped at half past four and showed no sign of being wound. The window looked out onto the street below, where a woman was pushing a pram and a boy was selling papers.
The promised desk was in the smaller room. It was, as advertised, very ugly: a massive Victorian thing of black oak with a leather top that had been scratched by decades of pens. Tommy looked at it with an affection that surprised him.
“It’s got pigeonholes,” he said.
“It’s got spiders,” Tuppence said. “I’ve killed four since yesterday. I’m starting to feel like a murderess.”
“You’ll get used to it. There’s a lot of spiders in London.”
They spent the morning arranging the flat. Tuppence had brought her few possessions: a suitcase of clothes, a framed photograph of her parents, and a small collection of books that included a battered copy of Jane Eyre and a manual on shorthand that she had never managed to finish. Tommy had brought even less: a suitcase, a shaving kit, and a box of letters from the front that he did not open.
Chapter VI — A Sign on the Door
“What do we do now?” Tuppence asked, when the arranging was done and they were sitting on either end of the horsehair sofa, which was even less comfortable than it looked.
“We wait for someone to need us.”
“That sounds passive.”
“It is passive. Most business is passive at the start. You put up a sign and hope someone notices.”
“We haven’t put up a sign.”
“I’ll paint one,” Tommy said. “I’m quite good at painting. One of the few skills I acquired in the army that has any civilian application.”
He found a piece of cardboard in the kitchen and a tin of black paint that had been left by the aunt. By the afternoon, the cardboard read, in careful capitals: “THE YOUNG ADVENTURERS, LTD. — FIRST FLOOR.” It was not elegant, but it was legible. Tuppence nailed it to the doorframe with a shoe heel.
They sat in the office — Tommy at the desk, Tuppence on a chair that she had dragged in from the sitting room — and looked at each other.
“What if nobody comes?” Tuppence said.
“Then we’ll have had a pleasant few days. And I’ll have to go to Harrogate.”
“I won’t let you go to Harrogate.”
“I’d like to see you stop me.”
“I’m very stubborn,” Tuppence said. “It’s another of my best qualities.”
The afternoon light faded slowly. They talked about the war, carefully, in the way that people talked about it then — in fragments, with silences. Tommy had been at the Somme in 1916, had been gassed in 1917, had spent six months in a hospital in Rouen and another three in a convalescent home in Sussex. Tuppence had nursed in a hospital in London, had held the hands of boys younger than herself as they died, had learned to sleep sitting upright in a chair because there was never time to go home. Neither of them said the things that mattered most. They were both too young to have learned how, and too old to pretend they hadn’t.
“Do you ever think,” Tuppence said, “that we’re not really the people we were before?”
Tommy was quiet for a moment. “I think,” he said, “that the people we were before are dead. They died somewhere in France. And we’re what’s left.”
Tuppence did not answer. There was nothing to say.
At six o’clock, Tuppence made tea. They drank it in the office, the cardboard sign visible through the window, announcing to the gray street below that the Young Adventurers were open for business.
Chapter VII — The First Enquiry
The following morning, Tuppence went out. She walked through the West End, past the theatres and the restaurants and the shops that displayed goods she could not afford, and she looked for opportunities. She was not certain what an opportunity would look like. She only knew that she intended to recognize one if she saw it.
It was a strange occupation, walking through a city with no purpose but to notice things. She found herself observing the people she passed with a new attention: the man in the gray coat who walked the same route twice within an hour, the woman at the corner of Charing Cross Road who stood reading a newspaper as though she were waiting for someone and did not wish to appear to be waiting. Tuppence was not sure whether any of them were significant. But she was beginning to understand how a person might become interested in such questions.
She stopped for lunch in a small café in Soho, where the food was cheap and the waitress called her “dear” and the man at the next table was reading a French newspaper. She watched him for a while. There was nothing suspicious about him. He was middle-aged, comfortably dressed, and eating a plate of soup with the slow care of a man who had nowhere to be. But Tuppence found herself wondering what he did for a living, and where he had learned French, and why he was reading a newspaper from Paris in a Soho café in the middle of a Tuesday.
It was, she realized, an interesting way to spend an afternoon. It was also, she suspected, a way to get herself into trouble.
She returned to the flat in the late afternoon and found Tommy at the desk, writing something in a small notebook.
“What are you doing?”
“Making a list of everyone we know who might possibly recommend us to someone who might possibly have work for us.”
“How long is the list?”
“Three names. And one of them is my aunt in Harrogate, who would only recommend us if we agreed to work in the boot factory.”
Tuppence sat down in the chair opposite him. “I spent the day walking around London looking at people. I didn’t find any work. But I think I understand something now that I didn’t understand before.”
“What’s that?”
“That there’s a great deal happening in this city that nobody talks about. People meeting in cafés. Letters being delivered by hand. Conversations that stop when you walk past. I don’t know what it all means. But it’s there.”
Tommy looked at her for a long moment. “You’re going to get us into trouble, aren’t you?”
“I sincerely hope so.”
Chapter VIII — A Name on a Window
The advertisement appeared in the Times three days later. It was small, tucked away between a notice for a lost dog and an announcement of a lecture on the future of the coal industry. It read:
TWO YOUNG ADVENTURERS FOR HIRE. Willing to do anything, go anywhere. Accept no unreasonable offer. Write to Y.A., 17 Sloane Square, London, S.W.
Tommy had insisted on placing it. Tuppence had argued against it, on the grounds that nobody in their right mind would answer an advertisement so obviously unserious. Tommy had argued in favour of it, on the grounds that nobody in their right mind would answer it, which meant that the people who did answer it would be interesting.
They waited. The first day brought nothing. The second day brought a letter from a man in Croydon who wished to know whether the young adventurers were willing to investigate the disappearance of his prize-winning pigeon. The third day brought a visit from a woman who wished to know whether they would be willing to look into the matter of her neighbour’s cat, which she believed to be a spy.
“A spy,” Tommy said.
“She was very insistent. She said the cat had been seen in the company of a man with a foreign accent.”
“What did you tell her?”
“That we would take the case under advisement.”
“At what fee?”
“I didn’t specify. I thought we could negotiate after we’d established whether the cat was actually a spy.”
On the fourth day, a letter arrived that was different from the others. It was written on good paper, in a hand that was careful and precise. It contained no enquiry, no request for services, and no explanation of any kind. It contained only a single line:
Do not go to the flat on Friday evening. There is a man watching the door. — A Friend
Tuppence read it twice. Then she handed it to Tommy without a word.
Tommy read it. He read it again. He set it down on the desk and looked at her.
“What flat?”
“I don’t know.”
“Who is the friend?”
“I don’t know.”
“What man?”
“I don’t know.”
They sat in silence for a long moment. Outside the window, the street was going about its ordinary business. A costermonger was calling out the price of vegetables. A boy was chasing a hoop along the pavement. Somewhere in the distance, a train was pulling out of a station.
“Tuppence,” Tommy said.
“Yes?”
“I think the Young Adventurers have just been hired.”
Tuppence looked at the letter again. She looked at the careful hand, the good paper, the single line of warning. She thought of the man in the café in Soho, of the woman at the corner of Charing Cross Road, of all the small unexplained things she had noticed in the past week and dismissed as coincidence.
She was, she realized, no longer bored.
“Then I suppose we had better find out who hired us.”
End of Playbook 1 · The mystery begins…
Key Takeaways from Playbook 1
- Post-war London, May 1919: The novel opens in a specific historical moment — demobilisation, unemployment, and the disillusionment of a generation promised a land fit for heroes.
- Tommy and Tuppence: Two ordinary young people, broke and bored, who decide that if no one will hire them, they will hire themselves.
- The Young Adventurers, Ltd.: Their business is a joke — but the joke attracts attention. Not all of it friendly.
- The flat at 17 S ofloane Square: The base of operations, and the address published in the Times advertisement.
- The first warning: A letter arrives on the fourth day warning < them away from “the flat on Friday evening.” Neither of them knows what this means — yet.
The mystery begins:
Historical Context — London, 1919
The The Secret Adversaryis a world in transition. The Great War ended in November 1918, and by the spring of 1919, Britain was demobilising millions of soldiers while facing economic disruption, labour unrest, and a housing shortage. Women who had entered the workforce during the war — as nurses, clerks, and factory workers — were being pushed out to make room for returning men, a process that left many of them, like Tuppence, qualified for jobs that no longer existed. The Lyons Corner Houses referenced in Chapter II were a real chain of tea rooms that became a fixture of London life in the early twentieth century, offering affordable food in respectable surroundings and, notably, one of the few public spaces where unaccompanied women could sit without attracting suspicion. Christie’s choice to open her novel in such a place is both historically grounded and thematically precise: this is a story about people who have nothing and must make something from it.
Original Value — Why Christie Created Tommy and Tuppence
Agatha Christie had already created a successful detective in Hercule Poirot when she began writing The Secret Adversary. She chose not to use him. Instead, she invented two characters who were, in her own framing, ordinary young people — a deliberate departure from the eccentric genius model of detective fiction that dominated the genre. Tommy and Tuppence are not brilliant in the way Poirot is brilliant. They are clever, resourceful, and lucky, but they make mistakes. They are, in the most literal sense, amateurs. This choice signals that The Secret Adversary is not a detective novel in the traditional sense. It is a novel about young people navigating a world that was not designed for them — a theme that has kept the book in print for over a century. Christie returned to Tommy and Tuppence four more times over her career, making them the only characters besides Poirot and Miss Marple to appear in multiple Christie novels across five decades.
Playbook 2 — The Man in the Grey Suit — publishes next. Tuppence meets the man who hired them, and a shadowy figure known only as “Mr. Brown” enters the story.
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