to think of all this? I have always held that the workings of a
criminologist's brain must be one of the most interesting studies in
life."

Mr. Dane smiled enigmatically.

"Ah!" he protested, "you mustn't ask me to disclose all my secrets."

"You wouldn't care to tell us a little about your future intentions?"
Philip enquired.

Mr. Dane shook his head.

"It is very kind of you, Mr. Merton Ware," he confessed, "to let me down
so gently. We all make mistakes, of course. As to my future intentions,
well, I am not quite sure about them. You see, this isn't really my job
at all. It isn't up to me to hunt out English criminals, so long as they
behave themselves in this city. If an extradition order or anything of
that sort came my way, it would, of course, be different."

"Why not lay this interesting theory of yours before the authorities at
Scotland Yard?" Philip suggested. "I am sure they would listen with
immense interest to any report from you."

"That's some idea, certainly," the detective admitted, taking up his hat
from the table. "For the present I'll wish you both good morning--or
shall I say an revoir?"

"We may look for the pleasure of another visit from you, then?" Philip
enquired politely.