However that may be, even at the moment when he saw that Jean Valjean had escaped him, Javert did not lose his head. Sure that the convict who had broken his ban could not be far off, he established sentinels, he organized traps and ambuscades, and beat the quarter all that night. The first thing he saw was the disorder in the street lantern whose rope had been cut. A precious sign which, however, led him astray, since it caused him to turn all his researches in the direction of the Cul-de-Sac Genrot. In this blind alley there were tolerably low walls which abutted on gardens whose bounds adjoined the immense stretches of waste land. Jean Valjean evidently must have fled in that direction. The fact is, that had he penetrated a little further in the Cul-de-Sac Genrot, he would probably have done so and have been lost. Javert explored these gardens and these waste stretches as though he had been hunting for a needle.
At daybreak he left two intelligent men on the outlook, and returned to the Prefecture of Police, as much ashamed as a police spy who had been captured by a robber might have been.