Chapter 13 The Second Warning

The second warning came via a letter, delivered to Mrs. Whitfield's house by a runner who claimed to be a messenger from Bletchley. The letter was written in a hand that Margaret recognized instantly—Dorothy's hand. Dearest Margaret, the letter began. I am writing this in secret, knowing that if anyone discovers it, I will be killed. But I must tell you what I have learned, what I have discovered, and what I fear. The investigation is not over. There are others. Others who were part of the conspiracy, others who were recruited by Hayes, others who are still at large. I have found their names, their addresses, their secrets. And I am afraid that I cannot trust anyone. Not anymore. Please, Margaret. Come back. Come home. I need you. Margaret read the letter three times, her heart sinking with each reading. Dorothy was afraid. Dorothy was in danger. And Dorothy was alone. Margaret knew she had to return. She knew she had to help Dorothy. And she knew that the fight was not over. She left the Lake District the following morning, traveling by train to London and then by car back to Bletchley. She arrived at the park in the early hours of the morning, when the staff was sparse and the lights were dim, and she made her way directly to Dorothy's quarters. Dorothy was there, waiting for her, her face pale and drawn, her eyes wide with fear and relief. When she saw Margaret, she collapsed into her arms, weeping silently, and Margaret held her and whispered words of comfort and reassurance. You are safe now, she said. You are safe. We will finish this together. Dorothy nodded, and together they began the work of unraveling the remaining threads of the conspiracy, of exposing the traitors and bringing them to justice. "It is not your hand," Margaret said quietly, when she had read the page through for the third time. "And it is not the voice I know, either." They did not burn the letter, though Margaret's first instinct was to feed it to the grate and call the whole thing a cruel joke. Instead they treated it as traffic. The paper was Bletchley stationery—she knew the watermark by feel before she raised it to the lamp—and it had been folded in thirds and thirds again, the service habit she had first noticed in a dead man's post. Dorothy claimed to have written it at night, in secret, yet the ink sat pale on the page as if watered to stretch a small supply across a long message. And no line of it sounded like its author: Dorothy Chen had never once in two years called anyone dearest. When she laid these things out gently, one by one, Dorothy went very still and then began to talk. Someone had been in her room—not searching, nothing so crude, just arranging: her brush moved a hand's width left, her spare blanket refolded to a different geometry, small signatures of presence designed to be felt rather than found. A note had waited inside her own coat the following week, four words, no capital letters, telling her that Margaret would come home or Dorothy would leave in a box. She had written the letter because the note wanted the letter written, had copied out whatever phrasing seemed most likely to move her friend, and had posted it through the laundry-basket channel because that basket left the park nightly with an escort nobody inspected. Margaret tested her the only way she could bear to. Your cousin in Singapore must be worried about you, she said, watching her friend's face. Dorothy frowned with genuine irritation. Hong Kong, she corrected automatically, and Singapore is where my aunt went when the colony fell, and I told you both those things the first week we met. The relief of being distrusted and passing was so violent that she laughed, then shook, then put her head in her hands while Margaret held them. The probe answered one question and opened three. Whoever watched Dorothy had read her post but not her memories; the threat was real, present, and close enough to enter quarters past the guards Brennan had posted; and the escape north had accomplished nothing except removing Margaret from a board where her absence changed nothing that mattered. They agreed on discipline before breakfast ended: behave exactly as before, work the ordinary tables, volunteer for extra watches, let the watcher see two tired women doing their duty. Every true thing Dorothy reported would be dull. Every interesting thing she passed along would be false, chosen together, and traceable to no one but the network that swallowed it. By the time frost feathered the window into white ferns, the letter itself had been pressed flat between blotting papers like a botanical specimen, its watermark mapped, its folds photographed against black cloth, its postmark—London, an inner district, dated three days after the boy's shilling—circled in red. Somebody with access to Bletchley stationery had written Dorothy's plea from inside London, and mailed it backwards through time into the north. Margaret looked at the circle until her eyes dried, and understood that the second warning had never been Dorothy's voice at all. It had been bait, addressed to her, signed with friendship, and the fact that its author knew about the refuge in the Lakes meant the leak reached somewhere no roster could account for. That evening they composed the reply their watcher would want found—a warm, grateful, empty-headed note thanking Dorothy for news she had never sent—and left it folded in the laundry basket with a single hair laid across the fold, the oldest tripwire in any housekeeper's repertoire. The hair was gone by Friday morning. Whoever cleared that basket also read its letters, and now believed his bait had been taken twice. Margaret meanwhile traded two canteen shifts for the midnight wireless watch, telling the duty officer she slept poorly in any case and might as well be useful about it. The first night delivered frost, a barn owl's complaint, and nothing further. On the second, somewhere near half past one, the latch of her outer door turned a full slow inch and stopped, and she lay matching her breathing to sleep while the strip beneath the door showed shadow, then showed none. Morning brought a corridor of polish and cold ash, a sentry swearing no one had passed his post all night, and two statements that were both true, which made them the most frightening sentences in her notebook that week. ---