In the dimly lit corridors of Hogwarts, a sense of foreboding lingered in the air. Sebastian Shallow, a seventh-year student with a penchant for unraveling mysteries, found himself drawn to the ancient library, seeking new spells to learn.

As he stepped into the library, Sebastian's keen eyes scanned the titles, searching for something that caught his eye. "Hmm, where could it be?" he mumbled to himself.