"God knows! Cadby's death was from drowning, you say?"
"There are no other marks of violence."
"But he was a very strong swimmer, Doctor," interrupted Inspector Ryman. "Why, he pulled off the quarter-mile championship at the Crystal Palace last year! Cadby wasn't a man easy to drown. And as for Mason, he was an R.N.R., and like a fish in the water!"
Smith shrugged his shoulders helplessly.
"Let us hope that one day we shall know how they died," he said simply.
Weymouth returned from the telephone.
"The address is No.—Cold Harbor Lane," he reported. "I shall not be able to come along, but you can't miss it; it's close by the Brixton Police Station. There's no family, fortunately; he was quite alone in the world. His case-book isn't in the American desk, which you'll find in his sitting-room; it's in the cupboard in the corner—top shelf. Here are his keys, all intact. I think this is the cupboard key."
Smith nodded.
"Come on, Petrie," he said. "We haven't a second to waste."
Our cab was waiting, and in a few seconds we were speeding along Wapping High Street. We had gone no more than a few hundred yards, I think, when Smith suddenly slapped his open hand down on his knee.