Cora uttered a low, triumphant, "Ah, did he?"

"Then he called me back as I was leaving the room to summon my mistress, and asked me who you were. I told him. He looked relieved, said he had mistaken you for an old acquaintance, and bade me ask you to come to him, and say nothing to Miss Arthur until he desired it."

"I see; but why did you follow her, when she came down? Did she know we were there?"

"No, madame."

"Then why—"

"Pardon," with a sidelong glance at her face, "but madame is beautiful, and my mistress is jealous. I thought you might wish me to do as I did, and I desired to serve you, madame."

Cora eyed her keenly. "But why serve me, Céline?"

"Madame has ever been gracious to Céline," said the girl, lowering her eyes. "Even a servant appreciates kindness—my mistress never considers that."

Cora's thoughts flew fast. If she could trust this girl, she might make her very useful. She had sought this interview to question her concerning the adventure of the morning, and now might she not be of still more service?

A few more sharply-put questions were asked, and answered with corresponding shrewdness. Then Céline detailed, in her own way, her interview with her mistress on the subject of Mr. Percy's visit.