Scourge of Waterways. Water leapers plague fresh lakes and rivers. The creatures prey on animals that come to the water's edge to drink, as well as on fishermen that ply their trade in the water leaper's territory. Stories circulate among fishermen of fishing grounds notorious for broken lines and missing bait, and fishermen give these areas a wide berth for fear of water leapers. Desperate or unwary fishermen who ignore the warnings are never seen again; drifting, empty boats are the only sign of their passing.