w orm ▁– ▁A ▁fear some ▁drag on ▁the ▁size ▁of ▁an ▁eigh teen - w he eler , ▁with ▁le ath ery ▁brown ▁bat - w ings ▁too ▁small ▁for ▁flight ▁and ▁only ▁two ▁front ▁legs . ▁The ▁Lind w orm s ▁res ide ▁at ▁the ▁roots ▁of ▁Y gg d ras il . ▁One ▁of ▁them ▁is ▁sent ▁by ▁L oki ▁to ▁catch ▁Magn us ▁and ▁his ▁friends ▁during ▁a ▁Val hal la ▁training ▁off - guard . ▁ ▁N ø kk ▁– ▁Water ▁spirits ▁who ▁play ▁sad ▁music ▁through ▁viol ins , ▁sending ▁its ▁listen ers ▁to ▁desp air . ▁In ▁The ▁Ham mer ▁of ▁Thor , ▁Ald erman ▁summ ons ▁a ▁hor de ▁of ▁N ø kk ▁to ▁attack ▁his ▁guests ▁and ▁Magn us ▁and ▁company . ▁Ot is ▁and ▁Mar vin ▁( T ann gr is n ir ▁and ▁T ann gn j ost r ) ▁– ▁Two ▁go ats ▁who ▁pull ▁Thor ' s ▁carriage . ▁They ▁are ▁also ▁used ▁as ▁source ▁of ▁food ▁and ▁they ▁recover ▁the ▁next ▁morning ▁after ▁being ▁e aten , ▁unless ▁their ▁b ones ▁have ▁been ▁broken . ▁Mar vin ▁is ▁more ▁p ess im istic ▁and ▁angry ▁than ▁Ot is , ▁and ▁lik es ▁to ▁critic ize ▁him . ▁ ▁Rat atos k ▁– ▁A ▁gig antic ▁squ ir rel ▁who ▁runs ▁around ▁Y gg d ras il , ▁deliver ing ▁h ateful ▁messages ▁between ▁the ▁e agle ▁at ▁the ▁top ▁and ▁the ▁tit an ic ▁ser pent ▁N id h