Grimlock once lived on the Island of Izaro (Where Havetica and Lokie live). But he was a selfish, dark dragon. He started to enslave other dragons. However, then the Humans came along. The Dragons and the Humans worked together to stop Grimlock. [Tags]
if you listen carefully at night, they trapped him in a cave and sealed it off. sometimes, you can hear him roar in anger. some say that he began to dig an underground home for himself in the cave. but nobody knows.