«How about Crimplesham's pince-nez?» he asked.
«That is a bit mysterious,» said Lord Peter.
«And why Thipps's bathroom?»
«Why, indeed? Pure accident, perhaps — or pure devilry.»
«Do you think all this elaborate scheme could have been put together in a night, Wimsey?»
«Far from it. It was conceived as soon as that man who bore a superficial resemblance to Levy came into the workhouse. He had several days.»
«I see.»
«Freke gave himself away at the inquest. He and Grimbold disagreed about the length of the man's illness. If a small man (comparatively speaking) like Grimbold presumes to disagree with a man like Freke, it's because he is sure of his ground.»
«Then — if your theory is sound — Freke made a mistake.»
«Yes. A very slight one. He was guarding, with unnecessary caution, against starting a train of thought in the mind of anybody — say, the workhouse doctor. Up till then he'd been reckoning on the fact that people don't think a second time about anything (a body, say) that's once been accounted for.»