Dragon Rider by cornelia funke

the community in wich dragons live is on the verge of human invaision in order to perserve their very existance, Firedrake and Sorel( a brownie) sert out to find the legendari rim of heaven. THe rim of heaven is were dragons came from long ago to escape being hunted to extiction by the firce dragon hunter, nittlebrand. long the jorney they find ben and he joins them in the adventure for dragons to live in peace.