"The door of the drawing-room, evidently," said Rénine.

He found this more difficult to open; and it was only by repeatedly charging it with his shoulder that he was able to move one of the doors.

Hortense had not spoken a word. She watched not without surprise this series of forcible entries, which were accomplished with a really masterly skill. He guessed her thoughts and, turning round, said in a serious voice:

"It's child's-play to me. I was a locksmith once."

She seized his arm and whispered:

"Listen!"

"To what?" he asked.

She increased the pressure of her hand, to demand silence. The next moment, he murmured:

"It's really very strange."

"Listen, listen!" Hortense repeated, in bewilderment. "Can it be possible?"