" When humans arrived in Alagaësia, they too were added to this elite order. After many years of peace, the monstrous and warlike Urgals killed the dragon of a young human Rider named Galbatorix. Driven mad by the loss and by his elders’ refusal to provide him with another dragon, Galbatorix set out to topple the Riders. "

― Christopher Paolini , Eldest (The Inheritance Cycle, #2)