Okay. So Hayley had somehow managed to nod off, but a particularly violent nod sent her eyes open just in time to watch as the apple disappeared into thin air. She rubbed her eyes, just in case she was still dreaming but apple. There was one earlier. Now it's gone.

And what on earth was a Thestral?

Apparently, it was a breed of winged horses. "Well, I can't see it, but I think that thing behind you that just ate the apple has wings. The thestral." she squinted. "What does a thestral even look like?"