The Ambassador shrank back with a cry, as his eyes fell upon the ghastly sight. Dufrenne gazed at the dead man impassively. Duvall, springing to his feet, went at once to the window at the rear of the room, which stood partly open, and raising it to its full extent, looked out. The others heard him give utterance to a low whistle, as he drew back into the room.

"No one could have entered the room," cried the Ambassador, in a frightened voice. "It is thirty-five feet or more to the ground."

Duvall motioned to the window. "Look out, monsieur," he remarked, quietly.

De Grissac did so, then uttered a sudden cry. From the window to the garden below stretched a long slender wooden ladder. "It belongs to the men who have been repairing the rain spouting," he exclaimed. "They leave it in the garden, at night. I knew there was no way in which Noël could get out."

"But clearly a way, monsieur, by which others could get in," said Duvall, quietly, as he began a minute examination of the room.

"But the snuff box—do you think it has been taken away?"

"Undoubtedly, monsieur. I suspected as much, when you showed me the man's letter. Your servant, I have no doubt, took the box while shaving you this morning. You doubtless dozed off, thus giving him the opportunity. He did not know that you had taken snuff from the box this morning shortly after arising, and imagined, no doubt, that you would suppose you had lost it some time the night before. This would relieve him of any suspicion. He hurried off to his room to secrete the box, meaning to deliver it to this friend of his, Oscar Seltz, during the afternoon. His arraignment by you, his subsequent imprisonment, no doubt frightened him and filled him with remorse—hence his rather unfriendly letter to Seltz. He had repented of his bargain, and was doubtless engaged in preparing a confession, telling you of his crime, and the reasons therefor, when the murderer entered the room.

"The latter, who probably was this man Seltz, must have become alarmed by the tone of Noël's letter. He was, it seems clear, planning some trip away from London, upon which he was about to leave. He meant to take the snuff box with him. Upon receiving Noël's letter he determined to see him and demand the box, if he found the latter had secured it. No doubt he made inquiries from some of the servants, on calling to see Noël, and was informed that he was confined to his room. He then pretended to leave, but in reality, ascended to the room by means of the ladder he found in the garden, while the servants were at dinner. It was a desperate chance, but he took it. Upon arriving in the room, he found Noël engaged in preparing his confession, insisted upon reading it, then realizing that his confederate was about to play him false, killed him, after gaining possession of the box, and departed."

The Ambassador uttered a groan. "My God," he moaned, "I am lost!"

Dufrenne, who meanwhile had been making a careful examination of the dead valet's body, rose with a mystified expression upon his face. "There are no wounds upon the body at all, Monsieur Duvall," he said. "How can you account for this man's death?"