"No, no, listen."

"Ah! yes, it is the horn of an automobile."

"Well?"

"Well! it is very improbable that Lupin would use an automobile
like a battering-ram to demolish your castle. Come, Monsieur le
Baron, return to your post. I am going to sleep. Good-night."

That was the only alarm. Ganimard resumed his interrupted
slumbers, and the baron heard nothing except the regular snoring
of his companion. At break of day, they left the room. The
castle was enveloped in a profound calm; it was a peaceful dawn on
the bosom of a tranquil river. They mounted the stairs, Cahorn
radiant with joy, Ganimard calm as usual. They heard no sound;
they saw nothing to arouse suspicion.

"What did I tell you, Monsieur le Baron? Really, I should not
have accepted your offer. I am ashamed."

He unlocked the door and entered the gallery. Upon two chairs,
with drooping heads and pendent arms, the detective's two
assistants were asleep.

"Tonnerre de nom d'un chien!" exclaimed Ganimard. At the same
moment, the baron cried out:

"The pictures! The credence!"