"The only thing I know," he thought, "is that the concierge affirms that Frederick-Christian was alone when he came to see Susy d'Orsel.... If I can prove that definitely I can also prove by the chain of evidence that the King is guilty. But how to do it?" Juve hurried through the courtyard, passing the office of Mme. Ceiron, who was out at that moment. As he had already obtained the key of Susy d'Orsel's apartment, her absence did not trouble him. "I'll be willing to bet," he thought, "that I shall find nothing interesting in her rooms. But it is at least my duty to go over them carefully.... If only I could discover evidence showing that three persons were there together, but that is most unlikely. The officers, the doctors, the concierge and the men who carried the body to the Morgue would have destroyed all traces." It was not without a slight shudder that Juve entered the apartment where the tragedy occurred. With a real catch at his heart he went through the bright, luxuriously decorated rooms, still giving evidence of a feminine presence. Death had entered there. The sinister death of crime, brutal, unforeseen. A hundred times more tragic for remaining unexplained. Juve, however, quickly stifled his feelings. He was there to investigate and nothing else mattered. The bedroom presented nothing worthy of notice, the boudoir was in perfect order, also the kitchen and the hall. Juve entered, finally, the dining-room. It was there, according to the testimony of witnesses, that the crime must have taken place. It was there in any case that Susy d'Orsel had received her lover. Nothing had been deranged. The table was still set for supper. Two places, side by side, bore mute witness that the King had been alone with his mistress. Juve at first carefully examined the general lay of the room. The disposition of the chairs, the two knives from the two forks, two fish plates, all went to prove there had been only two persons at the table. But suddenly he gave a start and his face expressed the keenest interest. He dropped to his knees and carefully examined the floor under the table. "Unless I am dreaming there are ashes here." Juve bent forward and noticed at the right of the sofa an ash receiver placed near the edge of the table, and below on the carpet a small heap of gray ash. "To begin with, we'll admit that Susy d'Orsel flicked the ash off her cigarette ... gray ash from Egyptian tobacco, a woman's cigarette." He now moved to the left of the sofa. "In the second place, here is another heap of ashes in this plate ... cigar ashes ... in fact here is the tend showing a German brand.... So the King was sitting on the right of Susy d'Orsel. Less careful, he used his plate instead of an ash receiver." Now bending down he noticed on the carpet a third heap of ash.