“He went off.”

“With his fly?”

“No. Pretending that he wanted to go and see a relation at Ouville, he borrowed the groom’s bicycle. Here are his hat and greatcoat.”

“But did he leave bare-headed?”

“No, he took a cap from his pocket and put it on.”

“A cap?”

“Yes, a yellow leather cap, it seems.”

“A yellow leather cap? Why, no, we’ve got it here!”

“That’s true, Monsieur le Juge d’Instruction, but his is just like it.”

The deputy sniggered: