I heard her hands groping about the chair and turned to try the floor on the other side again.

"I have it, monsieur."

"Well," said I, "I could have sworn I'd felt everywhere round that chair."

She chinked the bag by way of answer.

"Anyway, we've got it," said I. "Come on." And I made for the door. Then I stopped to take one more look at the great house. As I did so, a woman appeared on the far side of the stalls. She paused for a second to glance at herself in a mirror immediately under the solitary electric light. I recognized Yvonne. Then she passed on. Neither of us spoke for a moment. Then:

"Why did you say you were Yvonne?" said I.

"Yvonne is my name, too."

"Were you afraid I might have a lucid interval?"

"Perhaps."

"Your fears are realized. I have—I'm having one now."