comp uls ive ▁and ▁obs essed ▁with ▁order . ▁He ▁gu ards ▁the ▁city ▁limits ▁of ▁New ▁Rome . ▁Term inus ▁also ▁helps ▁Per cy ▁defeat ▁the ▁giant ▁Poly b otes . ▁ ▁Th an atos / Let us ▁– ▁The ▁god ▁of ▁death , ▁and ▁a ▁lieutenant ▁of ▁H ades . ▁In ▁The ▁Son ▁of ▁Ne pt une , ▁the ▁forces ▁of ▁G ae a ▁capture ▁Th an atos , ▁allowing ▁their ▁dead ▁al lies ▁to ▁quickly ▁return ▁to ▁life . ▁He ▁res umes ▁his ▁duties ▁after ▁being ▁res cu ed ▁by ▁Per cy , ▁Haz el , ▁and ▁Frank . ▁ ▁T iber inus ▁– ▁A ▁river ▁god ▁who ▁appears ▁to ▁An nab eth ▁in ▁The ▁Mark ▁of ▁Ath ena . ▁He ▁gu ides ▁her ▁to ▁the ▁beginning ▁of ▁the ▁Roman ▁leg ▁of ▁her ▁quest ▁for ▁the ▁Ath ena ▁Par then os . ▁To ▁An nab eth , ▁he ▁looks ▁exactly ▁like ▁Gregory ▁Pe ck . ▁ ▁R he a ▁Sil via ▁– ▁R he a ▁Sil via ▁is ▁a ▁former ▁V est al ▁Virgin ▁who ▁mother ed ▁Rom ulus ▁and ▁Rem us , ▁the ▁found ers ▁of ▁Rome . ▁She ▁was ▁made ▁an ▁imm ort al ▁and ▁wife ▁of ▁T iber inus ▁after ▁she ▁was ▁given ▁a ▁death ▁sentence ▁for ▁breaking ▁her ▁ch ast ity ▁v ow . ▁In ▁The ▁Mark ▁of ▁Ath ena , ▁R he a ▁Sil via ▁and ▁T iber inus ▁give ▁advice ▁to ▁An nab eth ▁about ▁the ▁location ▁of ▁the ▁Ath ena ▁Par then os