Elise was a little scared when the door closed and trapped all of them inside. Didn't he know that she wsa claustrophobic? Probably not. Pulling out her parchment and a self-inking quill, Elise stared at the first riddle for a moment.

That was present tense. Meaning that maaaybe they used to be human but weren't anymore? And that they're classified under beings, like humans. Cold? maybe they were vampires of some sort? Elise shook her head, moving on to the next line. Silvery glow? Sounded like a patronus. But there was one more line to be read before she could make a decent guess. Since they saw them everyday, it should be in the castle. And the only beings here should be the students and staff, and the - oh! She'd gotten the answer.

Beaming widely, Elise tore off a scrap of parchment, scribbled her answer and dropped it into the slot.