Chapter 1

"The entire affair is shrouded in mystery," said D'Arnot. "I have it on the best of authority that neither the police nor the special agents of the general staff have the faintest conception of how it was accomplished. All they know, all that anyone knows, is that Nikolas Rokoff has escaped."

John Clayton, Lord Greystoke--he who had been "Tarzan of the 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."

As these two talked in Paris, two other men were talking together in a little cottage upon the outskirts of London. Both were dark, sinister-looking men.

One was bearded, but the other, whose face wore the pallor of long confinement within doors, had but a few days' growth of black beard upon his face. It was he who was speaking.

"You must needs shave off that beard of yours, Alexis," he said to his companion. "With it he would recognize you on the instant. We must separate here in the hour, and when we meet again upon the deck of the Kincaid, let us hope that we shall have with us two honoured guests who little anticipate the pleasant voyage we have planned for them.

"In two hours I should be upon my way to Dover with one of them, and by tomorrow night, if you follow my instructions carefully, you should arrive with the other, provided, of course, that he returns to London as quickly as I presume he will.

"There should be both profit and pleasure as well as other good things to reward our