The Woman in White

Walter meets a mysterious woman in white when he first arrives in town to become an art instructor at Limmeridge House. He later is told that the woman, Ann, has escaped from a lunatic asylum, and he notes that she bears a strong resemblance to his pupil, Laura. Walter and Laura soon fall in love, though Laura is engaged to Sir Percival Glyde. Glyde and Laura marry, and the real troubles begin.

The Woman in White is considered to be one of the earliest mystery novels.