The Dead House by Dawn Kurtagich

Set in a crumbling boarding school, "The Dead House" follows a group of students as they uncover the chilling history of their new home. Mysterious happenings abound, from unexplained noises to the unsettling presence of spirits lingering in the shadows. As friendships are tested and secrets come to light, the students must confront not only the malevolent forces at play but also their own fears.