Woman in White (Collins)

The Woman in White 
Wilkie Collins, 1860
~700 pp. (Varies by publisher.)


Summary
Generally considered the first English sensation novel, The Woman in White features the remarkable heroine Marian Halcombe and her sleuthing partner, drawing master Walter Hartright, pitted against the diabolical team of Count Fosco and Sir Percival Glyde.

A gripping tale of murder, intrigue, madness, and mistaken identity, Collins's psychological thriller has never been out of print in the more than 140 years since its publication. (From the publisher.)