▁friends ▁include ▁Th alia ▁Grace , ▁daughter ▁of ▁Ze us ▁and ▁leader ▁of ▁the ▁Hun ters ▁of ▁Ar tem is ; ▁Luke ▁Cast ellan , ▁son ▁of ▁Herm es ▁( at ▁first ▁Per cy ' s ▁friend , ▁then ▁his ▁enemy , ▁and ▁finally ▁Per cy ' s ▁friend ▁at ▁the ▁time ▁of ▁his ▁death ); ▁N ico ▁di ▁Ang elo , ▁son ▁of ▁H ades ; ▁Rach el ▁Elizabeth ▁D are , ▁a ▁mort al ▁P yth ia , ▁or ▁host ▁of ▁a ▁proph etic ▁spirit ; ▁Haz el ▁Le ves que , ▁daughter ▁of ▁Pl uto ; ▁Leo ▁Val de z , ▁son ▁of ▁He pha est us ; ▁Jason ▁Grace , ▁son ▁of ▁Jup iter ; ▁Pi per ▁Mc Le an , ▁daughter ▁of ▁A ph rod ite ; ▁and ▁Frank ▁Z hang , ▁son ▁of ▁Mars . ▁Frank ▁Z hang ▁is ▁also ▁a ▁desc endant ▁of ▁Per ic ly men us , ▁desc endant ▁of ▁P ose id on , ▁and ▁so ▁dist antly ▁related ▁to ▁Per cy . ▁Finally , ▁Per cy ▁has ▁an ▁interesting ▁relationship ▁with ▁Clar isse ▁La ▁R ue , ▁daughter ▁of ▁A res ▁and ▁Camp ▁Half - B lo od ' s ▁resident ▁bul ly , ▁whom ▁he ▁alleg edly ▁dis lik es ▁but ▁often ▁helps . ▁ ▁Rom antic ▁relationships ▁ ▁Per cy ' s ▁oldest ▁rom antic ▁relationship ▁is ▁with ▁An nab eth ▁Ch ase . ▁Their ▁relationship ▁gradually ▁changes ▁throughout ▁the ▁first ▁series , ▁with ▁the ▁god dess ▁A ph rod