▁by ▁the ▁brothers ' ▁father ▁Ald erman ▁who ▁used ▁its ▁fur ▁as ▁a ▁container ▁for ▁the ▁blood ▁tax ▁H ear th ▁needs ▁to ▁collect ▁as ▁rep ent ance . ▁ ▁E ik th ry mir ▁– ▁A ▁stag ▁who ▁constantly ▁pour s ▁water ▁into ▁a ▁lake , ▁which ▁serves ▁as ▁the ▁source ▁of ▁all ▁water ▁in ▁the ▁N ine ▁World s . ▁It ▁res ides ▁in ▁Hotel ▁Val hal la . ▁ ▁Fen ris ▁Wolf ▁– ▁The ▁l up ine ▁son ▁of ▁L oki ▁and ▁the ▁brother ▁of ▁Hel ▁and ▁J orm ung and . ▁He ▁was ▁a ▁terror ▁in ▁times ▁past ▁and ▁the ▁gods ▁could ▁only ▁chain ▁him ▁up ▁with ▁the ▁help ▁of ▁the ▁d war ves ▁to ▁stop ▁him ; ▁even ▁T yr ▁had ▁to ▁lose ▁his ▁hand ▁against ▁the ▁w olf , ▁while ▁Bl itz ' s ▁father , ▁Bil ì , ▁lost ▁his ▁life ▁while ▁checking ▁his ▁prison ▁on ▁He ather ▁Island . ▁During ▁R agn ar ok , ▁Fen ris ▁Wolf ▁is ▁dest ined ▁to ▁kill ▁Od in ▁and ▁eat ▁the ▁sun . ▁He ▁is ▁the ▁foc al ▁point ▁of ▁The ▁S word ▁of ▁Summer , ▁as ▁the ▁goal ▁of ▁Magn us ▁and ▁his ▁friends ▁is ▁to ▁stop ▁Fen ris ▁Wolf ▁from ▁breaking ▁free ▁of ▁his ▁prison , ▁which ▁needs ▁to ▁be ▁re built . ▁They ▁manage ▁to ▁imprison ▁him ▁again ▁at ▁the ▁end ▁of ▁the ▁book . ▁▁▁ ▁Ger i ▁and ▁Fre ki ▁- ▁Od in ' s ▁two ▁wol ves ▁who ▁act ▁as ▁his ▁represent atives