"Who's the toff who just left your lot?" he said, when Bates arrived.

"Dunno," said Bates. "Some one callin' on Mrs. Lester, I fancy. Why?"

"O, nothing. On'y, if I was togged up regardless on a night like this I'd blue a cab fare."

"I didn't see him meself," commented Bates. "My boss 'eard him come, an' both of us 'eard him go. He didn't stay more'n five minnits."

"Wish I was in his shoes. I've got to stick round here till six in the morning," grinned the policeman.

"Well, cheer-o, mate."

"Cheer-o."

Bates looked in on his master before retiring for the night.

"What time shall I call you, sir?" he said.

Theydon was in the pipe and book stage, having exchanged his dress coat for a smoking jacket. He was reading a treatise on aeronautics, and, like every novice, had already formulated a flying scheme which would supersede all known inventions.