Frankenstein began as the nightmare of an unwed teenage mother in Geneva, Switzerland, in 1816. At a time when the moral universe was shifting and advances in scientific knowledge promised humans dominion over that which had been God's alone, Mary Shelley envisioned a story of human presumption and its misbegotten consequences. Two centuries later, that story is still constantly retold and reinterpreted, from Halloween cartoons to ominous allusions...