He followed the silversmith downstairs. Maître Leroux called his head man.
"We must move, Jacques, and that quickly; you have heard that the gates are shut."
"Yes, master, people are talking of nothing else."
"I have news that there will be trouble to-night, so we must set to work at once to place the chests in safety. First let them clear out the wood-cellar."
This was done in a few minutes by the seven men, then Jacques told the others to go back into the shop and pack up all the silver goods in the chests. As soon as they were gone Jacques looked inquiringly at his master, who nodded. Then he touched a brick in the wall some seven feet above the floor; it sprung back.
"Will you lift me up?" the man said to Guy. The lad did as he was asked, and the man thrust his arm into the orifice. A moment later he asked Guy to set him down.
"Go to the doorway," he said, and hurried across to where Maître Leroux was standing; then kneeling down he pushed his hand under the sill of the doorway and then stood up.
"Do you hear that?" the silversmith said.
"I hear a dull rumbling somewhere," Guy replied. As he spoke he saw half the floor, which was apparently of solid flags, beginning to rise.
"This was done in my father's time," Maître Leroux said, "and it was made for him by Maître Lepelletiere's father with the aid of two or three good smiths, who put the machinery together at his house and were in ignorance where it was intended to be placed."