Forgotten brothers

Skoll (One; who laugh) and Hati (One; who hates) are the names of two evil Jotnar (giants) presented in ancient Norse mythology. They are the sons of Fenrir and are constantly chasing Sol and Mani, the Norse gods who embodies the Sun and the Moon. They'll inevitably eat the two gods and this started Ragnarök, the end of the world. This is where their story should end, but does it?