Thenardier helped Jean Valjean to replace Marius on his shoulders, then he betook himself to the grating on tiptoe, and barefooted, making Jean Valjean a sign to follow him, looked out, laid his finger on his mouth, and remained for several seconds, as though in suspense; his inspection finished, he placed the key in the lock.
The bolt slipped back and the gate swung open.
It neither grated nor squeaked. It moved very softly.
It was obvious that this gate and those hinges, carefully oiled, were in the habit of opening more frequently than was supposed. This softness was suspicious; it hinted at furtive goings and comings, silent entrances and exits of nocturnal men, and the wolf-like tread of crime.
The sewer was evidently an accomplice of some mysterious band. This taciturn grating was a receiver of stolen goods.
Thenardier opened the gate a little way, allowing just sufficient space for Jean Valjean to pass out, closed the grating again, gave the key a double turn in the lock and plunged back into the darkness, without making any more noise than a breath. He seemed to walk with the velvet paws of a tiger.
A moment later, that hideous providence had retreated into the invisibility.
Jean Valjean found himself in the open air.