▁despite ▁the ▁difficulties ▁involved . ▁ ▁Meg ▁McC aff rey ▁Margaret ▁( M eg ) ▁McC aff rey ▁is ▁a ▁ 1 2 - year - dem ig od ▁daughter ▁of ▁Dem eter ▁and ▁the ▁main ▁character ▁in ▁The ▁H idden ▁Oracle . ▁Her ▁father ▁was ▁murder ed ▁by ▁" the ▁Be ast " ▁( Em peror ▁N ero ) ▁and ▁she ▁was ▁subsequently ▁adopted ▁by ▁Emperor ▁N ero , ▁considering ▁them ▁as ▁two ▁separate ▁people . ▁N ero ▁taught ▁her ▁the ▁arts ▁of ▁a ▁dem ig od ▁and ▁gave ▁her ▁a ▁pair ▁of ▁cres cent ▁rings ▁which ▁can ▁transform ▁into ▁sick les ▁made ▁of ▁imperial ▁gold , ▁before ▁giving ▁her ▁a ▁task ▁to ▁l ure ▁Apol lo ▁into ▁the ▁Gro ve ▁of ▁D od ona . ▁Meg ▁appears ▁to ▁Apol lo ▁at ▁an ▁al ley ▁of ▁Hell ' s ▁K itchen , ▁Manh attan ▁to ▁defeat ▁the ▁th ugs , ▁also ▁sent ▁by ▁N ero , ▁to ▁stage ▁" rob ber y ". ▁Meg ▁dem ands ▁Apol lo ' s ▁serv itude ▁and ▁with ▁his ▁travel s ▁to ▁Camp ▁Half - B lo od ▁with ▁Per cy ' s ▁assistance . ▁There , ▁Meg ▁displays ▁unusual ▁ab ilities ▁even ▁before ▁Dem eter ▁claims ▁her , ▁and ▁later ▁goes ▁with ▁Apol lo ▁to ▁search ▁for ▁missing ▁dem ig ods ▁and ▁the ▁Gro ve ▁in ▁the ▁nearby ▁woods , ▁having ▁to ▁end ure ▁a ▁brief ▁ab du ction ▁in ▁the ▁process . ▁Her ▁relationship ▁with ▁N ero ▁is ▁revealed ▁at ▁the ▁clim ax ,