One thing troubled him, however: it was the fear lest Savinien might learn something of his past. Sometimes there escaped from him some low word of thieves' slang, a vulgar gesture--vestiges of his former horrible existence--and he felt the pain one feels when old wounds re-open; the more because he fancied that he sometimes saw in Savinien the awakening of an unhealthy curiosity. When the young man, already tempted by the pleasures which Paris offers to the poorest, asked him about the mysteries of the great city, Jean Francois feigned ignorance and turned the subject; but he felt a vague inquietude for the future of his friend. His uneasiness was not without foundation. Savinien could not long remain the simple rustic that he was on his arrival in Paris. If the gross and noisy pleasures of the wine-shop always repelled him, he was profoundly troubled by other temptations, full of danger for the inexperience of his twenty years. When spring came he began to go off alone, and at first he wandered about the brilliant entrance of some dancing-hall, watching the young girls who went in with their arms around each others' waists, talking in low tones. Then, one evening, when lilacs perfumed the air and the call to quadrilles was most captivating, he crossed the threshold, and from that time Jean Francois observed a change, little by little, in his manners and his visage. He became more frivolous, more extravagant. He often borrowed from his friend his scanty savings, and he forgot to repay. Jean Francois, feeling that he was abandoned, jealous and forgiving at the same time, suffered and was silent. He felt that he had no right to reproach him, but with the foresight of affection he indulged in cruel and inevitable presentiments. One evening, as he was mounting the stairs to his room, absorbed in his thoughts, he heard, as he was about to enter, the sound of angry voices, and he recognized that of the old Auvergnat who lodged with Savinien and himself. An old habit of suspicion made him stop at the landing-place and listen to learn the cause of the trouble.