"The Third Horror (99 Fear Street: The House of Evil, Book 3) by R. L. Stine

Kody Frasier always swore she’d come back to 99 Fear Street. She knows the spirit of her dead sister, Cally, is trapped there, waiting to be set free. Now Kody is starring in a movie about the evil that murdered Cally, and she hopes she can find and help Cally. But Cally doesn’t want to be saved…she wants revenge.