Well, there are two main characters -- Selina is a ~spiritualist inmate in a woman's prison, Margaret is the unhappy spinster and "Lady Visitor." Set in Victorian times. It's written mostly as excerpts from Margaret's diary, interspersed by brief excerpts from Selina's diary. It's kind of cool because it's got the whole 'unreliable narrator' thing going on, if you enjoy that sort of story.