Sophie's world is shattered when disaster bankrupts her family. She's still reeling when she's offered an unexpected solution: Mr. Argenton, a wealthy stranger, has asked for her hand in marriage. Marrying Mr. Argenton will save her family, but it condemns Sophie to a life in Northwood, a vast and unnaturally dark mansion situated hours from civilization.

Still, she has no choice but accept the offer and hope the darkness won't swallow her whole.

It's a struggle to adjust to her new position as mistress over the desolate house. Mr. Argenton's relatives are cold, and Mr. Argenton himself is keeping secrets. Even worse, the house is more than it seems. Doors slam. Inhuman figures slink through the surrounding forest. A piano plays itself in the middle of the night. Blood drips a macabre warning down the walls. Day by day, Sophie is inevitably pulled towards the terrifying truth at the heart of this gothic mystery: Northwood's ancient halls are haunted, and the man she married―the man she's coming to love―is hiding an unforgiveable truth about his ancestral home...and the spirits that now haunt them both.