Sometimes D’Arnot accompanied him on his visits to the De Coude home, for he had long known both Olga and the count. Occasionally De Coude dropped in, but the multitudinous affairs of his official position and the never-ending demands of politics kept him from home usually until late at night.
Rokoff spied upon Tarzan almost constantly, waiting for the time that he should call at the De Coude palace at night, but in this he was doomed to disappointment. 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 François—in the service of the Countess de Coude. Possibly monsieur does poor François the honor to recall him—yes?