Headmaster? Eeek. Nikita shot one last Expelliarmus at a nearby Merperson, not even looking to see if she had hit her mark. The Headmaster was sure to know what to do. He would get them out of this mess.

And the sooner he did so the better. Water had long ago soaked her shoes and socks and traveled up the hems of her robes. The water line on her clothes stopped just under her Slytherin badge. It was cold, and Nikita noticed her teeth chattering; she clamped her mouth tight to stop them.