Plesiosaurs

Plesiosaurs are water-dwellers in the lakes of the valley of Eodon, that can grow to impressive sizes. Adventurers are usually perfectly safe from them, as long as they stays away from water or swamp. However, should someone be stupid enough to enter the territory of the Plesiosaur, it will see this as an invitation from a quick, fresh snack.

Safe means have to be found first, to cross these waters.