"The man Aranda is, I have discovered, a dangerous person," said the famous detective, leaning back in his chair. "He has served a sentence at Cayenne for the attempted murder of a woman in Lyons. He is, of course, an adventurer of the most expert type."

I longed to reveal to my friend Pinaud the whole facts, but this was against my instructions. I merely asked him as a favour to institute a strict vigilance upon the pair, and to report to me by telegraph if either of them left Paris.

Aranda was still living at the Hotel Terminus, but the pretty Lizette had gone to stay with two girl friends, professional dancers, who lived on the third floor of a house half-way up the Rue Blanche. So having discharged my mission, I returned on the following day to Potsdam, where, on meeting me, the Crown-Prince seemed much relieved.

His only fear—and it was a very serious one—was that to the Emperor there might be revealed the reason of that secret visit of his to Italy. I confess that I myself began to regard that visit with considerable suspicion. Its nature must have been, to say the least, unusual if he had been so aghast at the real truth being discovered.

In the strenuous days that followed, weeks, indeed, I frequently reflected, and found myself much mystified. More than once His Highness had asked me: "Any news from Pinaud?" And when I replied in the negative "Willie's" relief was at once apparent.

One day I had been lunching in Berlin at the "Bristol," in Unter den Linden, at a big party given by the Baroness von Bülow. Among the dozen or so present were Von Ruxeben, the Grand Marshal of the Court of Saxe-Coburg-Gotha; Gertrud, Baroness von Wangenheim, Grand Mistress of the Court of the Duchess; the Minister Dr. Rasch; and, of course, old "Uncle" Zeppelin, full of plans, as always, of new airships and of the destruction of London. Indeed, he sat next me, and bored me to death with his assurances that on "The Day" he would in twenty-four hours lay London in ruins.

The guests around the table, a gay and clever circle, saw that "Uncle" had button-holed me, and knew from my face how utterly bored I was. Truth to tell, I was much relieved when suddenly, when the meal was nearly over, a waiter whispered that somebody wished to see me out in the lounge.

It was a messenger from Potsdam with a telegram that had come over the private wire. It read: "Aranda left Paris two days ago. Destination unknown.—Pinaud."

The information showed that the fellow had cleverly evaded the agents of the Sûreté, a very difficult feat in such circumstances. That very fact went to prove that he was a cunning and elusive person.

Half an hour later I was sitting with Heinrich Wesener, Assistant-Director of the Secret Service of the General Staff. I sought him in preference to the famous detective, Schunke, because, while matters passing through the Secret Service Bureau were always regarded as confidential, those submitted to the Berlin police were known to many subordinates who had access to the dossiers and informations.