Oakes sank into a chair like a crouching leopard, and placed the tips of his fingers together. He nodded curtly. It was part of his pose to be keen and silent.

"I want you to go to this address"—Mr. Snyder handed him an envelope—"and look around. The address on that envelope is of a sailors' boarding-house down in Southampton. You know the sort of place—retired sea captains and so on live there. All most respectable. In all its history nothing more sensational has ever happened than a case of suspected cheating at halfpenny nap. Well, a man had died there."

"Murdered?" Oakes asked.

"I don't know. That's for you to find out. The coroner left it open. 'Death by Misadventure' was the verdict, and I don't blame him. I don't see how it could have been murder. The door was locked on the inside, so nobody could have got in."

"The window?"

"The window was open, granted. But the room is on the second floor. Anyway, you may dismiss the window. I remember the old lady saying there was a bar across it, and that nobody could have squeezed through."

Oakes' eyes glistened. He was interested. "What was the cause of death?" he asked.

Mr. Snyder coughed. "Snake bite," he said.

Oakes' careful calm deserted him. He uttered a cry of astonishment.
"Why, that's incredible!"

"It's the literal truth. The medical examination proved that the fellow had been killed by snake poison—cobra, to be exact, which is found principally in India."