Lock the Doors by Vincent Ralph 2022 Trade Paperback Mystery Thriller Trade paperback edition of Lock the Doors by Vincent Ralph, published in 2022. This young adult thriller follows a teenager who wins a competition to stay overnight at a famous theme park, only to discover that the dream experience may become a nightmare. As secrets emerge and danger escalates, she must uncover the truth before it's too late. Combining mystery, suspense, and psychological tension, the novel delivers fast-paced twists and high-stakes thrills for fans of contemporary YA fiction. Genres: Young Adult, Thriller, Mystery, Suspense, Psychological Fiction, Contemporary Fiction