I did not insist and, changing the conversation:
“How did you get in?”
“Why, how do you think? Through the door, of course. Then, as I saw nobody, I walked across the drawing room and out by the balcony, and here I am.”
“Yes, but the key of the door—?”
“There are no doors for me, as you know. I wanted your flat and I came in.”
“It is at your disposal. Am I to leave you?”
“Oh, not at all! You won’t be in the way. In fact, I can promise you an interesting evening.”
“Are you expecting some one?”
“Yes. I have given him an appointment here at ten o’clock.” He took out his watch. “It is ten now. If the telegram reached him, he ought to be here soon.”
The front-door bell rang.