▁of ▁H ades . ▁He ▁gu ards ▁the ▁living ▁side ▁of ▁the ▁Do ors ▁of ▁Death ▁in ▁Ep irus . ▁He ▁is ▁defeated ▁by ▁H ec ate , ▁Jason , ▁Leo , ▁Pi per , ▁N ico , ▁Frank ▁and ▁Haz el . ▁ ▁Dam as en ▁– ▁A ▁ 2 0   ft . ▁peace ful ▁G ig antes ▁with ▁red ▁drag on - like ▁legs ▁who ▁appears ▁in ▁The ▁House ▁of ▁H ades ▁and ▁is ▁exclusive ▁to ▁the ▁series . ▁He ▁had ▁been ▁made ▁to ▁opp ose ▁A res / M ars . ▁Dam as en ▁had ▁been ▁ex iled ▁to ▁T art arus ▁as ▁he ▁was ▁peace ful ▁not ▁violent ▁and ▁for ▁ref using ▁to ▁take ▁part ▁in ▁the ▁ancient ▁fight ▁against ▁the ▁gods ▁and ▁Her cules . ▁Per cy ▁and ▁An nab eth ▁encounter ▁him ▁in ▁T art arus ▁when ▁I ap et us ▁( Bob ) ▁brings ▁them ▁to ▁his ▁la ir . ▁When ▁the ▁person ification ▁of ▁T art arus ▁arriv es ▁near ▁the ▁Do ors ▁of ▁Death , ▁Dam as en ▁confront s ▁him ▁with ▁I ap et us ▁so ▁that ▁Per cy ▁and ▁An nab eth ▁can ▁escape ▁back ▁to ▁the ▁living ▁world . ▁ ▁En cel ad us ▁– ▁A ▁ 3 0   ft . ▁G ig antes ▁with ▁green ▁drag on - like ▁legs . ▁En cel ad us ▁was ▁the ▁first ▁Gi ant ▁to ▁be ▁re aw ak ened ▁in ▁the ▁Hero es ▁of ▁Olymp us ▁series . ▁He ▁oppos es