Jean Valjean laid Marius down along the wall, on the dry portion of the vaulting, then he went to the grating and clenched both fists round the bars; the shock which he gave it was frenzied, but it did not move. The grating did not stir. Jean Valjean seized the bars one after the other, in the hope that he might be able to tear away the least solid, and to make of it a lever wherewith to raise the door or to break the lock. Not a bar stirred. The teeth of a tiger are not more firmly fixed in their sockets. No lever; no prying possible. The obstacle was invincible. There was no means of opening the gate.