This is a novel tied tightly to poetry. Here's a description:
Possession is an exhilarating novel of wit and romance, at once an intellectual mystery and triumphant love story. It is the tale of a pair of young scholars researching the lives of two Victorian poets. As they uncover their letters, journals, and poems, and track their movements from London to Yorkshire—from spiritualist séances to the fairy-haunted far west of Brittany—what emerges is an extraordinary counterpoint of passions and ideas.