[Miranda_]

Draven had made a similar discovery himself, within the hallowed confines of the prefect's bathroom. The bathroom had an Olympic pool sized bath, with taps that didn't just run out plain water, but every different kind of bubble, soap or gel that could be imagined. Only prefects had access, and there were separate bathrooms for the boys and for the girls.

The egg underwater did not sound like unearthly screeching at all; instead, it sounded like a chorus of voices singing a song. Draven had to duck his head several times before he'd memorised the song.

Come seek us where our voices sound,
We cannot sing above the ground,
And while you're searching ponder this;
We've taken what you'll sorely miss,
An hour long you'll have to look,
And to recover what we took,
But past an hour, the prospect's black,
Too late it's gone, it won't come back.