▁is ▁captured ▁by ▁Sp ot ty ▁and ▁T atto o ▁and ▁be aten ▁into ▁being ▁a ▁guard ▁dog . ▁ ▁Arg al ▁is ▁F urg ul ' s ▁father , ▁as ▁well ▁as ▁the ▁" king " ▁of ▁the ▁Dog lands . ▁B ren n us ▁taught ▁him ▁everything ▁that ▁he ▁knows , ▁and ▁he ▁has ▁escaped ▁the ▁Tra ps ▁count less ▁times . ▁However , ▁he ▁gives ▁up ▁his ▁life ▁in ▁the ▁end ▁and ▁gets ▁put ▁down ▁by ▁le th al ▁injection , ▁which ▁kick starts ▁the ▁whole ▁revol t . ▁ ▁Sky ver ▁is ▁a ▁m utt ▁that ▁F urg ul ▁meets ▁in ▁the ▁tra ps , ▁as ▁well ▁as ▁Z in ni ▁and ▁T ess . ▁He ▁is ▁obs essed ▁with ▁being ▁a ▁friend ▁of ▁a ▁famous ▁dog ; ▁first ▁Arg al , ▁and ▁then ▁F urg ul . ▁In ▁the ▁revol t , ▁he ▁is ▁at ▁first ▁the ▁only ▁one ▁who ▁wants ▁to ▁leave , ▁but ▁then ▁he ▁goes ▁back , ▁ash amed , ▁and ▁starts ▁chant ing . ▁Sky ver ▁finally ▁proves ▁himself ▁in ▁the ▁final ▁attack . ▁ ▁B ren n us ▁is ▁a ▁St . ▁Bernard ▁and ▁old , ▁close ▁friend ▁of ▁Arg al . ▁When ▁F urg ul ▁first ▁sees ▁him , ▁he ▁doesn ' t ▁think ▁much ▁of ▁B ren n us ' s ▁pro w ess ▁because ▁of ▁all ▁his ▁sc ars , ▁but ▁finds ▁out ▁more ▁about ▁the ▁dog ▁and ▁comes ▁to ▁respect ▁him ▁more . ▁In ▁the ▁end , ▁B ren