The three women stood in the shadow of the building, Madam Stephan and Baroness Verbecht whispering together in frightened voices. Dixie Mason was startled a trifle by a subdued voice from the shadows directly in back of her.

"Operative 523, Miss Mason," said the voice, "shall I arrest the party?"

"No," answered Dixie Mason without turning her head, "Von Lertz is of more value to us at large as a means of keeping tabs on the Imperial German spies."

So it was that Von Lertz was not molested when he returned with a high powered touring car driven by a competent looking chauffeur.

"I told him Miss Mason and I were eloping," he whispered, "and that you two were friends of hers going along as witnesses. He is willing to drive us clear to New York."

Intent only upon getting away from the Secret Service, Von Lertz forgot for the time being that Count Von Bernstorff, Dr. Albert with Captain Von Papen and Captain Boy-Ed were awaiting word from him that the canal had been dynamited successfully. More than an hour had elapsed since the arrest of Jacobson before Von Lertz remembered this matter and he ordered all speed to the nearest telegraph station. There it took him some time to prepare the message and it was nearly midnight before it was delivered at the Imperial German Embassy in Washington.

The quartet of the Kaiser's arch conspirators had been waiting impatiently. All of Von Bernstorff's fears in regard to the plot had been aroused when the time passed and no message was received. When the telegram did arrive he was at his private telephone answering a call which had been received a few minutes before.

"Why it's from Ithaca," exclaimed Von Papen who had torn open the yellow envelope, "My God, it says 'failed.' What can it mean?"

"It means this gentlemen," came the cold voice of Von Bernstorff from the doorway, "that at the present moment a demand is being made upon Imperial Germany for your recall from the United States. I have just received information that Jacobson was arrested as he was leaving the hotel, that Koenig's other men were arrested at the canal in the act of placing the dynamite. It means that the Secret Service had full information of the plot, that you have been outwitted straight through."

"They couldn't have known," interposed Von Papen. "It is some more of the infernal luck of Harrison Grant."