" Suspense and horror novels set in schools seem to be trendy these days. I hated every single second of school from kindergarten to graduate school so I'm on board. I totally buy the idea of crime-ridden, ghost-filled, dangerous schools.
The subgenre is commonly known as dark academia. These books are usually set at a school, often a boarding school or university where students may be separated from their families for the first time. The primary character is most often a student but sometimes it is a newcomer teacher or professor. A dark mystery involving the school may be revealed and the newcomer realizes that the school isn't as idyllic as they'd been led to believe. Toxic relationships are as common as creepy old buildings in dark academia. Secret societies and ancient rituals may also appear in the genre. Dark academia books may take the form of psychological thrillers, mysteries, horror, speculative fiction, coming-of-age novels, or a combination of them" -TPL