"Do you recall the name of Okiu?"

"It seems familiar," replied the assistant, after a moment's thought. Then suddenly: "Wasn't he one of——"

"Look in the cabinet," said Ashton-Kirk.

Fuller went to the filing system and pulled open the drawer marked "OK." After a search of a few moments he turned.

"Yes," said he, eagerly. "Here he is, and underscored in red. The details are in Volume X."

Ashton-Kirk touched one of a row of bells. A buzzer made reply; through a tube the secret agent said:

"Bring up Volume X at once."

He threw himself into the big chair, stretched his legs contentedly and drew at the cigarette. In a little while Stumph entered, bearing a huge canvas-covered book; this he laid upon a small table, which he then pushed toward his employer. The latter looked at his watch.

"I'm not to be disturbed again to-day," said he. "And I'll dine earlier—at five o'clock."

"Anything more?" asked Fuller, when Stumph had left the room.