This Place Is Very Haunted - The Highschool Experience

[Book 2, Chapter 1] I thought it was over...
In 1999, [REDACTED] was a thriving school. Just a year later, it was suddenly abandoned. The official statement from the district was that the school flooded from burst pipes. However, the students know what really happened... Rumor is, a student messed around with a dark ritual, creating something that roams the school for years to come.