He vanished accordingly and his sister was constrained to wait for him. When at last he returned, she was almost the only lady still waiting.

"You have no idea," said Claud, apologetically, "of the stupendous difficulty of finding a cab. They all say they are engaged. I feel quite out of the fashion, Mab; I think I ought to be engaged."

"I'm not in a mood for nonsense, sir. I am vexed with you, and with Mr. Percivale, too. He could not have meant to treat me like this—he had no right to make off in that manner and leave me in the lurch."

"To be left in the lurch is sometimes the fate of chaperones," observed her brother, pensively, as he piloted her out of the theatre. "I am afraid you hardly counted the cost, Mab, when you offered to chaperone a beauty. It is hardly your rôle, old lady."

This was too true to be pleasant. Lady Mabel was so accustomed to male admiration that she usually took it for granted that she was the attraction. The great influx of young men which inundated Bruton Street had caused her, only a few days back, to congratulate herself that her charms were still potent. Percivale's good looks, riches, and generally unusual entourage had led her to imagine that a platonic friendship with him would enliven the winter. The idea suggested by her brother's words was like a douche of cold water. If he were such an idiot as to be in love with the pretty face of the foolish Elsa—well! But he was so fascinating that one could not help regretting it! He was raised all of a sudden to a much higher value than the crowd of adorers who in general formed her ladyship's court. Surely he could not intend to go and tie himself down at his age! The thought greatly disturbed her.

"Claud, you must throw away that cigar, and tell him to let down the glass—I am frozen."

Claud complied.

"He's going in a very queer direction," observed he, presently. "Hallo, friend, this is not the way to St. James's Place."

"Thought you said St. James' Square, sir."

"Well, I didn't; it's exactly the opposite direction, down by the river——"