Runcorn stared at him. "Metropolitan Police and River Police?" His blue-gray eyes were filled with amazement, memory, something that could almost have been hope.

Monk felt the old guilt back like a wave. They had been friends once, watched each other's backs in times of danger with an unquestioning trust. It was he who had broken that trust, not Runcorn. Now Runcorn must be wondering if this was just another trick.

Runcorn's face set hard. "If one of the Argylls-or both-had a man murdered to hide what he knew, then I'll see that justice is served," he said grimly. "And I won't let that girl stay buried as a suicide if she was murdered. Right, Monk." He rose to his feet. "We'll start again along the street where Havilland lived. I know neither of the Argylls was Havilland's actual killer because they were both well accounted for. I got that far, on Mary's word. Toby was in Wales, a hundred miles away, and Alan was at a party on the other side of the city with a hundred witnesses. His wife's word I wouldn't believe, but twenty members of Parliament I have to. But whoever shot Havilland must have been there. Maybe someone saw him, heard him, noticed something. Come on!"

Monk followed eagerly. There was an element of recapturing the past in walking the dark, bitter streets beside Runcorn. They moved from one place to another, finding off-duty hansom drivers huddled around a brazier, or local police on the beat. They separated to ask the questions and waste less time, but still they learned nothing. It was snowing again now, big, lazy flakes drifting out of the sky into the lamplight and settling feather light on the ground. Monk began to wonder more honestly what time had given Runcorn in the years since they had started out as equals. Monk himself had been badly hurt, lost his profession, been to the edge of an abyss of fear, of a self-knowledge unendurable even now. At the last moment it was Hester who had helped him prove to everyone-above all to himself-that he was not the man he dreaded he might be.

Monk had little enough materially. His reputation was dubious. He was still clumsy when it came to command. He had much to regret, to be ashamed of. But he had won far more than he had lost. He had solved many cases, fought for the truth, and mostly he had won.

Far above any of that he had personal happiness, an ease of heart that made him smile in repose and look forward to going home at the end of the day, certain of kindness, of trust and of hope.

What did Runcorn have? What gave him pleasure when he closed the office doors and became merely a man? Monk had no idea.