▁some ▁may ▁be ▁aware ▁of ▁their ▁super natural ▁surr ound ings . ▁ ▁The ▁Jackson ▁family ▁ ▁S ally ▁Jackson ▁– ▁Per cy ' s ▁mother , ▁initially ▁married ▁to ▁Gabriel ▁U g li ano ▁and ▁later ▁to ▁Paul ▁Blo f is . ▁In ▁The ▁Light ning ▁Th ief , ▁she ▁works ▁in ▁a ▁c andy ▁shop . ▁When ▁she ▁was ▁younger , ▁she ▁asp ired ▁to ▁be ▁a ▁writer . ▁She ▁is ▁nearly ▁killed ▁by ▁the ▁Min ota ur , ▁but ▁is ▁discovered ▁to ▁be ▁alive ▁in ▁the ▁cl ut ches ▁of ▁H ades . ▁Per cy ▁travel s ▁to ▁the ▁Under world ▁to ▁free ▁her . ▁In ▁The ▁T itan ' s ▁Cur se , ▁Per cy ▁real izes ▁she ▁can ▁see ▁through ▁the ▁M ist , ▁which ▁she ▁adm its ▁may ▁have ▁attract ed ▁P ose id on ▁to ▁her . ▁S ally ▁appears ▁in ▁all ▁of ▁the ▁first ▁five ▁books . ▁The ▁H idden ▁Oracle ▁reve als ▁that ▁she ▁is ▁seven ▁months ▁pre gn ant ▁with ▁Per cy ' s ▁baby ▁half - s ister . ▁In ▁the ▁Magn us ▁Ch ase ▁and ▁the ▁God s ▁of ▁As g ard ▁book ▁The ▁Sh ip ▁of ▁the ▁Dead , ▁it ▁is ▁revealed ▁that ▁S ally ▁has ▁given ▁birth ▁and ▁that ▁she ▁called ▁her ▁daughter ▁Est elle , ▁after ▁her ▁late ▁mother . ▁In ▁the ▁film ▁adaptation , ▁she ▁is ▁played ▁by ▁Catherine ▁Ke ener . ▁In ▁the ▁musical , ▁she ▁is ▁port rayed ▁by ▁Car rie ▁Comp ere . ▁