The Diary from the Empty Classroom
The abandoned classroom on the third floor smelled of dust and old parchment. The door slammed shut behind Hermione on its own, and the sound echoed up into the vaulted ceiling.
A diary in a worn leather cover lay on the teacher’s desk. She knew every book in the library — this one was not among them. Hermione opened the first page, and the ink appeared right before her eyes.

