Whiro

Whiro-te-tipua (aka Whiro) is the lord of darkness and embodiment of all evil in Māori mythology. Usually depicted as a lizard-like creature, he inhabits the underworld and is responsible for the ills of all people, a contrast to his brother and enemy Tāne.

According to some tribes, when people die, their bodies descend into the underworld, where they are eaten by Whiro. Each time Whiro eats a body, he becomes stronger. This process will eventually make him sufficiently powerful to break free of the underworld, at which point he will come to the surface and devour everything and everyone on it. Cremation is therefore recommended to prevent this, because Whiro cannot gain strength from ashes.