Apes"--sat in silence in the apartments of his friend, Lieutenant
Paul D'Arnot, in Paris, gazing meditatively at the toe of his
immaculate boot.

His mind revolved many memories, recalled by the escape of his
arch-enemy from the French military prison to which he had been
sentenced for life upon the testimony of the ape-man.

He thought of the lengths to which Rokoff had once gone to compass
his death, and he realized that what the man had already done would
doubtless be as nothing by comparison with what he would wish and
plot to do now that he was again free.

Tarzan had recently brought his wife and infant son to London to
escape the discomforts and dangers of the rainy season upon their
vast estate in Uziri--the land of the savage Waziri warriors whose
broad African domains the ape-man had once ruled.

He had run across the Channel for a brief visit with his old friend,
but the news of the Russian's escape had already cast a shadow upon
his outing, so that though he had but just arrived he was already
contemplating an immediate return to London.

"It is not that I fear for myself, Paul," he said at last. "Many
times in the past have I thwarted Rokoff's designs upon my life;
but now there are others to consider. Unless I misjudge the man,
he would more quickly strike at me through my wife or son than
directly at me, for he doubtless realizes that in no other way
could he inflict greater anguish upon me. I must go back to them
at once, and remain with them until Rokoff is recaptured--or dead."