Aaron was by birth and in his own country one of the learned class, and he promptly set about supplementing Leah's neglected education. She had lived so solitary a life that her Russian remained pure and soft and was quite distinct from the mixture of Yiddish, German, English, and slang which her neighbours spoke. English, which she read easily, she spoke rarely and haltingly, and Jewish in a prettily pedantic manner, learned from her mother, whose father had been a Rabbi. Aaron lent her books in these three languages, which straightway carried her into strange and glorious worlds. Occasionally the twins stole and sold the books, but their enlightenment remained. To supplement the reading he took her to lectures and to night schools, and thus one evening they listened to an illustrated "talk" on "Contagion and Its Causes." There had been an epidemic of smallpox in the quarter and Panic was abroad. Parents who spoke no English fought wildly with ambulance surgeons who spoke no Jewish, and refused to entrust the sufferers to the care of the Board of Health. Many disturbances resulted and the authorities arranged that, in all the missions, night schools, and settlements of the East Side, reassuring lecturers should spread abroad the folly of resistance, the joys of hospital life, the surety of recovery in the arms of the board, with a few remarks upon the sources of contagion. Leah and Aaron listened to one of the most calming of these orators. The lecturer spoke with such feeling--and such stereopticon slides--that smallpox, scarlet fever, measles, and diphtheria seemed the "open sesame" to bliss unutterable, and the source of these talismans rather to be sought for diligently than shunned. "Didst hear?" Leah asked Aaron as they went home. "For a redness on the skin one may stay in bed for a week and rest." "Ay, but one is sick," said Aaron sagely. "Not if one goes where the gentleman said. One lies in bed for a week--three weeks--and there be ladies who wait on one, and one rests--all days one rests. And there be no twins. Think of it, Aaron! rest and no twins!" A few days later she climbed home after a morning's shopping to find Algernon, heavy of eye and red of face, crouched near the locked door with a whimper in his voice and a card in his hand. "I'm got somethin'," he announced, with the pride of the invalid. "Where didst get it?" asked Leah, automatically; she was accustomed to brazen admission of guilt. "Off of a boy at school." "Thou wilt steal once too often," his sister admonished him. "Go now, confess to Miss Bailey, and return what thou hast taken." "The boy has it too," retorted Algernon. "It's a sickness--a taking sickness; und comes a man und gives me a card und says I should come by my house; I'm sick."