“It would be jolly difficult to implicate either of them,” Angel went on reflectively, addressing the back of the inspector. “They would produce fifty unimpeachable alibis, and bring an action for wrongful arrest in addition,” he added artfully.

“They can’t do that,” said the inspector gruffly.

“Can’t they?” asked the innocent Angel. “Well, at any rate, it’s not advisable to arrest them. Jimmy would——”

Inspector Boyden swung round in his chair.

“I don’t know whether you’re ‘pulling my leg,’ Mr. Angel. You are perhaps unused to the procedure in criminal cases in London, and I must now inform you that at present I am in charge of the case, and must request that if you have any information bearing upon this crime to give it to me at once.”

“With all the pleasure in life,” said Angel heartily. “In the first place, Jimmy——”

“Full name, please.” The inspector dipped his pen in ink.

“Haven’t the slightest idea,” said the other carelessly. “Everybody knows Jimmy. He was old Reale’s most successful decoy duck. Had the presence and the plumage and looked alive, so that all the other little ducks used to come flying down and settle about him, and long before they could discover that the beautiful bird that attracted them was only painted wood and feathers, ‘Bang! bang!’ went old Reale’s double-barrel, and roast duck was on the menu for days on end.”

Inspector Boyden threw down his pen with a grunt.

“I’m afraid,” he said in despair, “that I cannot include your parable in my report. When you have any definite information to give, I shall be pleased to receive it.”