On several occasions Tarzan accompanied the countess to her home after the opera, but he invariably left her at the entrance—much to the disgust of the lady's devoted brother.

Finding that it seemed impossible to trap Tarzan through any voluntary act of his own, Rokoff and Paulvitch put their heads together to hatch a plan that would trap the ape-man in all the circumstantial evidence of a compromising position.

For days they watched the papers as well as the movements of De Coude and Tarzan. At length they were rewarded. A morning paper made brief mention of a smoker that was to be given on the following evening by the German minister. De Coude's name was among those of the invited guests. If he attended this meant that he would be absent from his home until after midnight.

On the night of the banquet Paulvitch waited at the curb before the residence of the German minister, where he could scan the face of each guest that arrived. He had not long to wait before De Coude descended from his car and passed him. That was enough. Paulvitch hastened back to his quarters, where Rokoff awaited him. There they waited until after eleven, then Paulvitch took down the receiver of their telephone. He called a number.

"The apartments of Lieutenant D'Arnot?" he asked, when he had obtained his connection.

"A message for Monsieur Tarzan, if he will be so kind as to step to the telephone."

For a minute there was silence.

"Monsieur Tarzan?"

"Ah, yes, monsieur, this is Francois—in the service of the Countess de Coude. Possibly monsieur does poor Francois the honor to recall him—yes?

"Yes, monsieur. I have a message, an urgent message from the countess. She asks that you hasten to her at once—she is in trouble, monsieur.

"No, monsieur, poor Francois does not know. Shall I tell madame that monsieur will be here shortly?

"Thank you, monsieur. The good God will bless you."

Paulvitch hung up the receiver and turned to grin at Rokoff.

"It will take him thirty minutes to get there. If you reach the German minister's in fifteen, De Coude should arrive at his home in about forty-five minutes. It all depends upon whether the fool will remain fifteen minutes after he finds that a trick has been played upon him; but unless I am mistaken Olga will be loath to let him go in so short a time as that. Here is the note for De Coude. Hasten!"

Paulvitch lost no time in reaching the German minister's. At the door he handed the note to a footman. "This is for the Count de Coude. It is very urgent. You must see that it is placed in his hands at once," and he dropped a piece of silver into the willing hand of the servant. Then he returned to his quarters.

A moment later De Coude was apologizing to his host as he tore open the envelope. What he read left his face white and his hand trembling.

MONSIEUR LE COUNT DE COUDE:

One who wishes to save the honor of your name takes this means to warn you that the sanctity of your home is this minute in jeopardy.

A certain man who for months has been a constant visitor there during your absence is now with your wife. If you go at once to your countess' boudoir you will find them together.

A FRIEND.


Twenty minutes after Paulvitch had called Tarzan, Rokoff obtained a connection with Olga's private line. Her maid answered the telephone which was in the countess' boudoir.

"But madame has retired," said the maid, in answer to Rokoff's request to speak with her.

"This is a very urgent message for the countess' ears alone," replied Rokoff. "Tell her that she must arise and slip something about her and come to the telephone. I shall call up again in five minutes." Then he hung up his receiver. A moment later Paulvitch entered.

"The count has the message?" asked Rokoff.

"He should be on his way to his home by now," replied Paulvitch.

"Good! My lady will be sitting in her boudoir, very much in negligee, about now.