It was an unexpected request, but he showed no surprise. He piloted her to a secluded spot in the upper regions, and they sat down on a lounge at the end of a corridor.

A queer sense of uneasiness had begun to oppress Carey, as strong as it was inexplicable. He made a resolute effort to ignore it. The music downstairs was sinking away. He took out his watch.

"The dramatic moment approaches," he remarked, after a pause. "Are you ready?"

She did not speak.

"I'll tell you why I want to see you unmask," he said, speaking very quietly. "It is because there is something about you that reminds me of someone I know, but the resemblance is so subtle that it has eluded me all the evening."

"You do not know me," she said. And he felt that she spoke with an effort.

"I am not so sure," he answered. "But in any case—"

He paused. The music had ceased altogether, and an expectant silence prevailed. He looked at her intently as he waited, till aware that she shrank from his scrutiny.

A long deep note boomed through the house, echoing weirdly through the intense silence. Carey put up his hand without speaking, and stripped off his mask. He crumpled it into a ball as the second note struck, and looked at her. She had not moved. He waited silently.

At the sixth note she made a sudden, almost passionate gesture and rose. Carey remained motionless, watching her. Swiftly she turned, and began to walk away from him. He leaned forward. His eyes were fixed upon her.