“I saw her. I've always been able to see her.” While her friends head off to start new lives in London after university, Penny has a different idea. She's going to go and take a job at a remote lighthouse for a year, helping to keep the place running while she saves money. When she arrives at Culthorpe lighthouse, however, she quickly realizes that something is very wrong. Something is hiding nearby the lighthouse, something that only makes its presence felt at night. Meanwhile, Penny is concerned about one of her co-workers, a man whose memory seems to be almost non-existent. What is the dark secret of Culthorpe lighthouse? Is Penny really crazy, or has she been visited by a ghost since she was a child? And who or what is hidden beneath the hatch in the generator room? The Lighthouse is a horror novel about a girl who was taught to doubt herself, and about the refusal of dead souls to rest until all debts have been paid.