A hollow noise caused Coucou to keep silent. He and Madame Caraman looked at each other in terror.
"What can that be?" asked Madame Caraman.
Before Coucou could answer the question, the noise was repeated.
"The noise comes from the right side," said Coucou, who had been listening; "let us hurry to Gontram and Fanfaro, and call their attention to it."
Mamma Caraman nodded, and they both went to Jane's room.
It was empty!
"This is getting worse and worse," cried Coucou, anxiously. "Do you know what I think? This room has a secret exit, and through it Jane, the vicomte, and Gontram and his comrades have disappeared."
"What are you going to do?"
"Break down the house if necessary," said Coucou, beginning to trample upon the floor.
"But you are ruining the carpet!" cried Mamma Caraman.