THE MURDER OF ROGER ACKROYD
leaning forward. His eyes shone with a queer green light.
For a moment Inspector Raglan was taken aback by the question.
"It's difficult to say exactly why he did that," he said at last. "But murderers do funny things. You'd know that if you were in the police force. The cleverest of them make stupid mistakes sometimes. But come along and I'll show you those footprints."
We followed him round the corner of the terrace to the study window. At a word from Raglan a police constable produced the shoes which had been obtained from the local inn.
The inspector laid them over the marks.
"They're the same," he said confidently. "That is to say, they're not the same pair that actually made these prints. He went away in those. This is a pair just like them, but older—see how the studs are worn down."
"Surely a great many people wear shoes with rubber studs in them?" asked Poirot.
"That's so, of course," said the inspector. "I shouldn't put so much stress on the footmarks if it wasn't for everything else."
"A very foolish young man, Captain Ralph Paton," said Poirot thoughtfully. "To leave so much evidence of his presence."
"Ah! well," said the inspector, "it was a dry, fine night, you know. He left no prints on the terrace or on the graveled path. But, unluckily for him, a spring
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