'Welcome to the Hooflands. We're happy to have you, even if you being here means something's coming.' Regan loves, and is loved, though her school-friend situation has become complicated, of late. When she suddenly finds herself thrust through a doorway that asks her to 'Be Sure' before swallowing her whole, Regan must learn to live in a world filled with centaurs, kelpies and other magical equines - a world that expects its human visitors to step...

Lore Keeper apprentice Barclay helps his teacher investigate a carnivorous algae bloom and its possible connection to recurring attacks by the Legendary Beast of the Sea.