The year is 1841 and Grayson Sherbrooke, a popular author of gothic paranormal mysteries, lives on the coast of Northern England with his four-year-old-son, Pip. He's asked by a neighboring little girl, P.C., to come to Wolffe Hall because something terrible is threatening her and her mother. She describes the house shaking with terrifying tremors and a huge black hole she calls the Abyss appearing in the entrance hall. She also knows the menace involves her great grandfather, known as The Great. He's obsessed with collecting and returning the famous Waterloo medals to the soldiers of the great battle of 1815, but he refuses to tell anyone why he's doing it. Grayson is soon embroiled in a mystery involving a wrongful death on the battlefield at Waterloo and a paranormal force that threatens the very lives of those living in Wolffe Hall.