"I think I'll just keep these valet's togs on, for the fun of it, and then I'll be all ready when five o'clock comes," said Holmes after we had locked Luigi in his room and were descending the stairs. "Gee, but I wish they'd put in an elevator in this darned old-fashioned castle! My legs are getting kind of tired running up and down five flights of stairs."

As we reëntered the library, where the Earl, Tooter, and Thorneycroft looked up with surprise as they saw Holmes come back in Vermicelli's clothes, Lord Launcelot and Billie Hicks came in. They had been up in the billiard room for some time, and came down to see whether anything had developed in their absence. Upon being told that Holmes had recovered two of the cuff-buttons from Yensen and Thorneycroft, and was in a fair way to recover a third one from Xanthopoulos, they were greatly surprised.

"We left Inspector Letstrayed asleep on one of the billiard tables," said Launcelot, with a grin; "but I guess Holmes was able to get along pretty well without him. A little while ago I heard the first gardener, Blumenroth, swearing something fierce on the second floor. What was he doing up there, anyhow?"

"How do you know it was Blumenroth?" asked Holmes, as he nudged me.

"Because it was in German, and he's the only German here."

"Do you understand German yourself?"

"No."

"Then how do you know it was swearing?"

"Oh, I could tell by the tone of it."

"Well, if you couldn't understand the words, no harm was done. Say, fellows, how do I look in the valet's togs?" asked Holmes turning around as if he was in a tailor shop trying on a new suit.