og g ▁below . ▁It ▁is ▁also ▁task ed ▁to ▁capture ▁intr ud ers ▁who ▁enter ▁and ▁leave ▁Hotel ▁Val hal la ▁without ▁permission . ▁Rat atos k ▁is ▁able ▁to ▁emit ▁sorrow ful ▁call ings ▁to ▁people , ▁which ▁Magn us ▁describes ▁as ▁much ▁worse ▁than ▁simply ▁being ▁g na wed ▁by ▁it . ▁ ▁S ae hr im n ir ▁– ▁A ▁creature ▁whom ▁the ▁A es ir ▁and ▁ein her jar ▁kill ▁every ▁night ▁for ▁food ▁only ▁for ▁it ▁to ▁rem aterial ize ▁the ▁next ▁morning . ▁Its ▁flesh ' s ▁taste ▁depends ▁on ▁what ▁its ▁e ater ▁wants ▁it ▁to ▁taste ▁like , ▁and ▁even ▁has ▁a ▁veg an ▁to fu ▁option . ▁ ▁Stanley ▁– ▁An ▁eight - leg ged ▁horse ▁whom ▁Sam ▁spec ul ates ▁is ▁a ▁child ▁of ▁Od in ' s ▁ste ed ▁S le ip n ir . ▁He ▁helps ▁Magn us ▁and ▁his ▁friends ▁on ▁several ▁occasions . ▁ ▁V at n ava ett ir ▁– ▁V at n ava ett ir ▁are ▁water ▁horses . ▁They ▁are ▁called ▁each - uis ce ▁in ▁Irish . ▁Some ▁of ▁them ▁attack ▁the ▁Big ▁Ban ana ▁in ▁York , ▁but ▁Sam ▁man ages ▁to ▁t ame ▁them , ▁allowing ▁her ▁to ▁sum mon ▁them ▁to ▁sc ur ry ▁her ▁and ▁the ▁others ▁after ▁their ▁successful ▁capture ▁of ▁L oki ▁in ▁N if l heim . ▁ ▁Mort als ▁Mort als ▁are ▁human ▁characters ▁who ▁live ▁outside ▁of ▁the ▁world ▁of ▁magic ▁and ▁gods , ▁though