But he had the photograph. And between the photograph and the small strips left on the wall, he saw it. On the wall there had been a surrealistic poster of a room. And from the walls of that room hung arms. And in the ceilings were trunks of bodies. And looking at the photograph of what the poster had been and at the remnants of the poster now, Inspector Waldman saw that the room had been made into a replica of this mad poster. Almost exactly in proportion to the picture. It was an imitation of the picture. He stepped back on the creaking floor. An exact, proportional, almost slavish imitation. He felt something about this, and his instinct told him it was important. What was it?

Waldman looked down at the photograph again. Sure. That was it. There was no deviation from the poster at all. The room had reproduced the horror of the poster exactly, almost as if the killer had been programmed to do it, almost as if he had no feelings of his own. It was as if a mindless ape had imitated art and created nothing but death.

Of course, none of this could go in a report. He'd be laughed out of the department. But he wondered what sort of killers could remain calm enough to exactly copy a poster during the hysteria of mass murder. Probably a devil cult of some sort. In that case, there would be more of these, and the perpetrators were doomed. Almost anyone had a fair chance of getting away with something once. Sometimes twice. But something like this they would have to do again, and when they got to the third time, or maybe even the second, some circumstance, some accident of performance, some loose word somewhere, some left wallet, some random thing, like even a door locking behind them or being seen in the act, would get them. Time, not brilliance, was the law's edge.