▁develop ments . ▁ ▁This ▁is ▁a ▁new ▁category ▁of ▁Second ▁Foundation er , ▁created ▁after ▁the ▁near - dis aster ▁involving ▁the ▁M ule , ▁whose ▁importance ▁was ▁missed ▁until ▁it ▁was ▁almost ▁too ▁late . ▁ ▁Well - mean ing , ▁but ▁weak , ▁his ▁role ▁is ▁secondary . ▁ ▁He ▁does , ▁however , ▁give ▁Tre v ize ▁a ▁vital ▁clue ▁about ▁the ▁location ▁of ▁Earth ▁by ▁direct ing ▁him ▁to ▁Com por ell on , ▁which ▁he ▁vis its ▁in ▁Foundation ▁and ▁Earth . ▁ ▁On um ▁Bar r ▁On um ▁Bar r ▁is ▁a ▁pat ric ian ▁of ▁the ▁old ▁Gal actic ▁Empire ▁of ▁Tr ant or , ▁and ▁a ▁sen ator ▁of ▁Si wen na . ▁He ▁had ▁six ▁sons , ▁five ▁of ▁whom ▁died ▁after ▁being ▁bet rayed ▁in ▁a ▁re bell ion ; ▁his ▁only ▁daughter ▁committed ▁suic ide ▁as ▁well . ▁Wh ilst ▁living ▁quietly ▁and ▁in ▁pover ty ▁in ▁ex ile , ▁On um ▁meets ▁with ▁H ober ▁M allow , ▁who ▁thinks ▁that ▁Si wen na ▁is ▁still ▁the ▁provincial ▁capital ; ▁that ▁position ▁has ▁been ▁taken ▁by ▁Or sha ▁II . ▁On um ▁helps ▁M allow ▁obtain ▁information ▁on ▁the ▁atomic ▁power ▁of ▁the ▁planet , ▁and ▁is ▁rep a id ▁with ▁a ▁box ▁of ▁prov isions . ▁ ▁P elle as ▁Anth or ▁P elle as ▁Anth or ▁was ▁originally ▁introduced ▁as ▁a ▁research er ▁in ▁electro ence phal ographic ▁analysis . ▁T ogether ▁with ▁Tor an ▁D are ll