It chanced that Theydon faced the two swing doors which led to the street, and he was returning the bit of ivory to his pocket when, somewhat to his surprise, Furneaux entered.
The detective saw him, too--of that he was quite certain--but ignored him completely.

After one sharp, comprehensive glance around, as though he were seeking some one who was not visible, the little man went to a desk, scribbled a note, handed it in at the inquiry office, walked swiftly in the direction of an anteroom and restaurant, and disappeared forthwith.
Theydon was puzzled by Furneaux's behavior, but was quick to perceive that if the latter had not wished to be left alone he would at least have made some sign of recognition.
A page approached Mr.Handyside.
"Note for you, sir," he said.
The American opened the envelope and read a few lines scribbled on a sheet of note-paper.

He passed it to Theydon.
"The circus is now about to commence," he said, and the meaning of this enigmatical remark was made clear when Theydon saw what was written.
"Dear Sir," it ran, "take Mr.Theydon to your room.

I'll join you there immediately .-- C.

F.Furneaux." "If this is the little sleuth who was missing yesterday I guess we've gotten our call," commented Handyside, with an amused grin at the expression of bewilderment on his companion's face.
"I was just about to tell you that Furneaux had come in and crossed the hall." "Well, let's beat it to the third floor.