Margaret Prior, an upper class woman in Victorian London, begins visiting the women of Millbank prison after a failed suicide attempt. She finds herself drawn to Selina Dawes, a spiritual medium sent to prison after the death of a woman during a séance. Margaret begins to believe Selina’s claims of occult power after a series of mysterious gifts appear. As the women’s relationship grows deeper, Margaret starts to develop a plan to free Selina from Millbank.
Affinity is a mystery at heart, with enough twists and turns to captivate the attention of any mystery reader. The book has been described as moody, haunting, and haunted, and will satisfy fans of dark gothic fiction. It won the 2001 Stonewall Book Award-Barbara Gittings Literature Award for LGBT fiction. There is also a film version of the book which captures the dark Victorian setting perfectly.