The Girl Who Lived Volume 1 by Moishe Goldman Free Novel Reading Chapter 109
“…An avanc is a ferocious aquatic creature that inhabits the rivers of North Wales. It’s fairly easy to spot; it resembles a huge, overgrown beaver with a crocodile-like snout.” Black chuckled. “Avancs feed primarily on livestock or wild animals that come to drink. However, they’re not above human flesh, though attacks on wizards are rare.