The Gulper (S. "Mandesiror" or "Swimmer of Fate") or Eath was a Maia that could take the shape of a giant fish. It would then swallow any seamen that came by its domain. Because of its affinity for seamen, the Eath was named "The Gulper" by Hobbits and other natives.Both, Hobbits and Rivermen however were ignorant of the fact of the Eath and the Gulper being one and the same.The Eath was generally believed to be an "Elvish Wight" while the Gulper was seen as a gigantic fish that swallowed thieves and wastrels whole if they paddled their boats down the river.