Moreover, after their first outburst of enthusiasm, the Imberts seldom spoke to him, and, although treating him with the consideration due to a benefactor, they gave him little or no attention. They appeared to regard him as an eccentric character who did not like to be disturbed, and they respected his isolation as if it were a stringent rule on his part. On one occasion, while passing through the vestibule, he heard Madame Imbert say to the two gentlemen:

“He is such a barbarian!”

“Very well,” he said to himself, “I am a barbarian.”

And, without seeking to solve the question of their strange conduct, he proceeded with the execution of his own plans. He had decided that he could not depend on chance, nor on the negligence of Madame Imbert, who carried the key of the safe, and who, on locking the safe, invariably scattered the letters forming the combination of the lock. Consequently, he must act for himself.