Shuma is an old white whale and the arch-rival of the former-Khan, Hubbub. Shuma regularly raided Hubbub's city of Shattered Beams for fish, and one day, after becoming trapped in a cave, Hubbub and some whalers battled her, managing to deafen her, although Shuma killed the whalers and caused the loss of Hubbub's leg. Meanwhile, Quin a powerful Sea singer, used the Elder Horn, to force sea monsters to attack the city, and was successful in destroying the majority of it, leaving only two survivors: Hubbub, and the Old Man of the Sea. Since Hubbub was unable to take revenge on Quin, he took revenge on Shuma, whom he blamed for preventing him from being there and stopping it, and they have battled ever since.