A woman in this novel leaves various Christian tracts around her aunt’s house after she learns her aunt will soon die of heart disease. The first chapter of this novel opens with a house-steward agreeing to write the narrative and consulting Robinson Crusoe for guidance. In this novel, a maid conceals a man’s paint-smeared nightgown because of her unrequited love for him, then drowns herself in (*) quicksand. The end of this novel reveals that a dark-skinned sailor is the female protagonist’s cousin Godfrey, who was murdered by Indians. In this novel, Ezra Jennings helps discover that opium had induced Franklin Blake to steal an object inherited by Rachel Verinder on her eighteenth birthday. For 10 points, name this Wilkie Collins mystery (10[1])novel about the theft of the title (10[1])gem. ■END■ (0[4])