So they all set forth; the doctor had insisted on accompanying them to the door of the hotel; there he left them, and they silently followed the waiter who carried the light before them. He opened two adjoining rooms and after wishing them good night disappeared.

Valentine stretched out his hand to Eugénie. She pressed it, and said calmly, looking up at him,

"Good night to you, my dear friend, sleep well, and au revoir to-morrow."

Then she entered her room and closed the door behind her.

After remaining quiet for some time he knocked gently at the door which separated the two rooms.

"Eugénie," he whispered.

"What do you want?" she asked.

"Your good night of before, was against our treaty."

"Against what treaty?"

"That which we solemnly ratified with the doctor's new wine."