Thomas Callahan knew from the moment the woman walked into his office that this was not going to be a divorce case. Divorce clients came into his office on Forty-second Street with tissue boxes and trembling hands and a desperate need to believe that the other person was the villain. This woman had neither tissue boxes nor trembling hands. She had a leather portfolio and a look that said she had already decided who the villain was and was merely here to pay for confirmation.

My husband is alive, she said.

That is usually good news, Thomas said.

My husband died in 1958. I have the death certificate. I have the cremation papers. But three weeks ago, I received a photograph of him. He is sitting in a cafe in Buenos Aires. He is fifty-two years old. He is the same age he would have been if he had not died sixteen years ago.

Thomas took the photograph. It was grainy, taken through a window from across the street, but the face was unmistakable. Robert Hale, his own high school classmate, whom Thomas had attended the funeral of with a grief so abstract it had been more inconvenience than sorrow. Robert, who had been a minor league baseball player with a promising left hand and a drinking problem. Robert, who had died of a heart attack at forty.

Who sent you the photograph? Thomas asked.

I do not know. But I know that my husband did not die. And I know that if you are the right kind of detective, you will find out how.

The right kind of detective, Thomas thought. There was only one kind, and he was it: the kind who found things out and could not do anything about them.

He found Robert Hale alive in a boarding house in Poughkeepsie, which made no sense because Poughkeepsie was nowhere near Buenos Aires. Robert looked exactly as he had in the photograph: fifty-two years old, clean-shaven, with the same left-handed grip on his coffee cup.

You are Thomas Callahan, Robert said. It was not a question. He had read about Thomas in the papers. Small cases, steady work, a reputation for finding things that people did not want found.

How are you alive? Thomas asked.

Robert smiled in a way that made Thomas understand why the woman had come to him. That is the question, isn't it? The one that has no answer that will make anyone feel better.

The truth, when Thomas finally assembled it, was not dramatic. Robert had not escaped death. Robert had been recruited, at his lowest point, by a government agency that specialized in making dead men useful. They had given him a new identity, a new face, a new life in a city three thousand miles from the one where he had supposedly died. And then, when the cold war ended and the agency restructured, Robert had been discarded, left with an identity that was not his and a country that did not want him.

But the woman had come to Thomas with a different question. She did not want to know how Robert was alive. She wanted to know who had arranged it, and why, and what they wanted from him now.

Thomas found the answers. The agency wanted nothing. They had moved on. Robert was a ghost who had been accidentally given a pulse, a mistake in a filing system that had never been corrected.

He told the woman everything. He told her that her husband was alive but not the husband she remembered. He told her that the man in Buenos Aires had no memory of her, no memory of the life they had built, no memory of the death that had been arranged for him by people who operated in rooms without windows.

She paid him the full fee. She took the photograph and held it for a long time in her hands, like a piece of paper that she was deciding whether to burn or to keep forever. Then she walked out of his office and did not look back.

Thomas sat at his desk and waited for the next caller. The city outside was dark and indifferent, and the truth, when you found it, was almost always worse than the lie. ---