Javert leaned his elbows on the parapet, his chin on his hand, and while his hands mechanically closed on his thick whiskers, he reflected. A novelty, a revolution, a catastrophe had just taken place within him, and he must examine into it. Javert was suffering horribly, and for some hours past Javert had ceased to be simple. He was troubled; this brain, so limpid in its blindness, had lost its transparency, and there was a cloud in this crystal. Javert felt in his conscience duty doubled, and he could not hide the fact from himself. When he met Jean Valjean so unexpectedly on the Seine bank, he had something within him of the wolf that recaptures its prey and the dog that finds its master again. He saw before him two roads, both equally straight; but he saw two of them, and this terrified him, as he had never known in his life but one straight line. And, poignant agony! these two roads were contrary, and one of these right lines excluded the other. Which of the two was the true one? His situation was indescribable; to owe his life to a malefactor, to accept this debt and repay him; to be, in spite of himself, on the same footing with an escaped convict, and requite one service with another service; to let it be said to him, "Be off!" and to say in his turn, "Be free!" to sacrifice to personal motives duty, that general obligation, and to feel in these personal motives something general too, and perhaps superior; to betray society in order to remain faithful to his conscience,--that all these absurdities should be realized, and accumulated upon him, was what startled him. One thing had astonished him,--that Jean Valjean had shown him mercy; and one thing had petrified him,--that he, Javert, had shown mercy to Jean Valjean.