“She promised to be here,” he answered stiffly.

“Everything depends upon your being honest with me,” she continued.  “You will see from my question that I know.  Was there not something said about supper at your rooms before or after the dance?”

“I cannot discuss this matter with you or any living person,” he answered.  “If you know so much why ask me?”

Lady Carey could have shaken the man, but she restrained herself.

“It is sufficient!” she declared.  “What I cannot understand is why you are here—­when Lucille is probably awaiting for you at your rooms.”

He started from his chair as though he had been shot.

“What do you mean?” he exclaimed.  “She was to—­”

He stopped short.  Lady Carey shrugged her shoulders.

“Oh, written you or something, I suppose!” she exclaimed.  “Trust an Englishman for bungling a love affair.  All I can tell you is that she left Dorset House in a hansom without the others, and said some thing about having supper with some friends.”

Brott sprang to his feet and took a quick step towards the exit.

“It is not possible!” he exclaimed.

She took his arm.  He almost dragged her along.

“Well, we are going to see,” she said coolly.  “Tell the man to call a hansom.”

They drove almost in silence through the Square to Pall Mall.  Brott leaped out onto the pavement directly the cab pulled up.

“I will wait here,” Lady Carey said.  “I only want to know that Lucille is safe.”

He disappeared, and she sat forward in the cab drumming idly with her forefingers upon the apron.  In a few minutes he came back.  His appearance was quite sufficient.  He was very pale.  The change in him was so ludicrous that she laughed.

“Get in,” she said.  “I am going round to Dorset House.  We must find out if we can what has become of her.”

He obeyed without comment.  At Dorset House Lady Carey summoned the Duchess’s own maid.

“Marie,” she said, “you were attending upon the Countess Radantz to-night?”

“Yes, my lady.”

“At what time did she leave?”

“At about, eleven, my lady.”

“Alone?”

“Yes, my lady.”

Lady Carey looked steadily at the girl.

“Did she take anything with her?”

The girl hesitated.  Lady Carey frowned.

“It must be the truth, remember, Marie.”

“Certainly, my lady!  She took her small dressing-case.”

Lady Carey set her teeth hard.  Then with a movement of her head she dismissed the maid.  She walked restlessly up and down the room.  Then she stopped short with a hard little laugh.

“If I give way like this,” she murmured, “I shall be positively hideous, and after all, if she was there it was not possible for him—­”

She stopped short, and suddenly tearing the handkerchief which she had been carrying into shreds threw the pieces upon the floor, and stamped upon them.  Then she laughed shortly, and turned towards the door.