ther ▁of ▁the ▁murder ous ▁mon ster ▁Lam ia . ▁Al ab aster ▁was ▁one ▁of ▁the ▁dem ig ods ▁who ▁al lied ▁with ▁K ron os ▁in ▁the ▁T itan ▁War ▁in ▁The ▁Last ▁Olymp ian . ▁He ▁was ▁sent ▁into ▁ex ile ▁after ▁the ▁T itan ▁War ▁after ▁ref using ▁to ▁stay ▁at ▁Camp ▁Half - B lo od . ▁He ▁claims ▁to ▁have ▁led ▁his ▁sib lings ▁to ▁their ▁death s ▁during ▁the ▁war ▁against ▁the ▁Olymp ians . ▁He ▁has ▁several ▁mag ical ▁powers , ▁which ▁he ▁channels ▁through ▁sp ells ▁and ▁magic ▁writ ings . ▁ ▁Alice ▁Mi y az awa ▁– ▁A ▁daughter ▁of ▁Herm es . ▁She ▁is ▁a ▁close ▁friend ▁of ▁Julia , ▁and ▁the ▁two ▁are ▁always ▁never ▁far ▁from ▁each ▁other . ▁Ch ir on ▁states ▁that ▁she ▁and ▁Julia ▁have ▁taken ▁over ▁the ▁St oll ▁brothers ' ▁kn ack ▁for ▁m isch ief , ▁following ▁Tra vis ' ▁en roll ment ▁on ▁college ▁and ▁Con nor ' s ▁sudden ▁res erv ement ▁that ▁it ▁caused . ▁The ▁two ▁girls ▁har bor ▁a ▁cr ush ▁on ▁Apol lo . ▁ ▁Austin ▁Lake ▁– ▁A ▁te en age ▁son ▁of ▁Apol lo , ▁an ▁accomplished ▁African - American ▁music ian ▁who ▁special izes ▁in ▁jazz ▁sa x oph one . ▁His ▁mother , ▁Lat ric ia ▁Lake , ▁is ▁a ▁music ▁professor ▁at ▁Ober lin ▁College ▁in ▁Ober lin , ▁Ohio ▁whose ▁music ▁theory ▁class ▁Apol lo ▁once ▁took . ▁He ▁is ▁mentioned ▁in