ten o'clock
hastily interrupted Cambray , forgetting himself . `` No , they have not -- more 's the pity ! '' returned the marquis . `` My detective was not clever enough to perceive the difference between the eight-year-old girl who was carried to your apartments at ten o'clock , and the twelve-year-old little maid whom your friend brought downstairs at eleven , pretending that he was going in search of the lost child 's mother . Besides , everything conspired to aid your friend to escape . He was too cunning for us , and got such a start of his pursuers that there was no use trying to follow him . We do not even know in what direction he has gone . ''