Mr.Basket stooped swiftly, plunged his hand in the slime, and held it up to the light.
"Eh ?" said the Doctor, peering close.

"What?
A latchkey ?" "My duplicate latchkey!" In spite of the heat engendered by his efforts, Mr.Basket's teeth chattered.

"My wife gave it to him the last thing." He turned and drove his net beneath the dark water with redoubled energy.

The very next haul brought to shore an even more convincing piece of evidence--a silver snuff-box.
It was the Major's.

Mr.Basket had seen his friend use it a thousand times; and called Miss Marty forward to identify it.