Eragon 's uncle , Garrow is killed by the Ra ` zac ( insect-like creatures that work for Galbatorix ) , who want to find and capture Eragon and Saphira .
Eragon and Saphira manage to escape by hiding in the forest , but Garrow is fatally wounded and the house and farm are burned down by the Ra ` zac . Once Garrow dies , Eragon is left with no reason to stay in Carvahall , so he goes after the Ra ` zac , seeking vengeance for the destruction of his home and his uncle 's death .