"I do not think I would care to have such colossal wealth as his," remarked the Chief of Police. "As soon as he arrived from Paris I had orders from the Ministry to place him under surveillance, because, it seems, he goes in fear of some personal attack upon him." "By whom?" I asked, instantly interested. "The information is vague," was his reply. Then, taking up a large yellow paper from his desk, he said: "It seems that he has applied to the Ministry for personal protection, and for a daily report of anyone who may be keeping observation upon him. There is a young Englishman living at the Palace Hotel who seems unduly interested in the gentleman's movements. We are watching him." I held my breath. This was an unexpected revelation. De Gex was in fear of us, and had resorted to that ruse in order to keep himself posted upon Hambledon's movements! Truly the situation was daily growing more complicated! "Surely such a well-known man as Mr. De Gex--a man who is noted not only for his immense wealth, but for his generous contributions to charity--could not have enemies?" I remarked. "Everyone has enemies, my dear m'sieur," was the police official's suave reply. "Señor De Gex was here in Madrid a year ago when he made a similar application to the Ministry for personal surveillance. He was here in connexion with the foundation of the new Madrid and Southern Spain Banking Corporation, which is guaranteed by a group of French and Dutch financiers of whom Señor De Gex is the head." He paused, and then continued: "He seems highly strung and nervous. All men who are in the public eye seem to be the same. Well-known foreigners visiting Madrid often apply for surveillance, yet there is certainly no need of it. And I confess to you that my staff is, after all, unduly worked." "I can quite imagine that," I said. "But is a strict watch kept upon Mr. De Gex?" "Yes, and upon his agent, Monsieur Suzor, also." "Has Monsieur Suzor been in Madrid before?" "He was here two years ago when Señor De Gex had some big financial deal with the Count Chamartin, who was head of the Miramar Shipping Company of Barcelona. They say he bought the whole fleet of steamers from Count Chamartin." "Was Count Chamartin wealthy?" "Yes. A millionaire, without a doubt. But it is said that shortly before his death he quarrelled with his wife. Why, nobody knows. She lives at Segovia, and their house here in the capital has just been sold." "Was any attempt made upon Mr. De Gex?" I asked. "Well, a mysterious young Frenchman called one night at the Ritz and demanded to see him. He was very excited, and when he was refused admission upstairs, he flourished a revolver. My agent on duty arrested the stranger, who was, after examination, deported. For that Señor De Gex sent me a letter of thanks, and the scarf-pin which you see I wear."