was very small, and though he flattened himself against the wall
at its far edge he was scarcely more than a foot from the doorway.
Almost immediately it opened, and Gernois stepped out. Rokoff was
behind him. Neither spoke. Gernois had taken perhaps three steps
down the stairway when he halted and half turned, as though to
retrace his steps.

Tarzan knew that discovery would be inevitable. Rokoff still
stood on the threshold a foot from him, but he was looking in the
opposite direction, toward Gernois. Then the officer evidently
reconsidered his decision, and resumed his downward course. Tarzan
could hear Rokoff's sigh of relief. A moment later the Russian
went back into the room and closed the door.

Tarzan waited until Gernois had had time to get well out of hearing,
then he pushed open the door and stepped into the room. He was
on top of Rokoff before the man could rise from the chair where he
sat scanning the paper Gernois had given him. As his eyes turned
and fell upon the ape-man's face his own went livid.

"You!" he gasped.

"I," replied Tarzan.

"What do you want?" whispered Rokoff, for the look in the ape-man's
eyes frightened him. "Have you come to kill me? You do not dare.
They would guillotine you. You do not dare kill me."

"I dare kill you, Rokoff," replied Tarzan, "for no one knows that
you are here or that I am here, and Paulvitch would tell them that