▁ ▁St y x ▁– ▁The ▁prim ord ial ▁river ▁god dess ▁of ▁the ▁same ▁name . ▁T aking ▁o ath s ▁under ▁St y x ' ▁name ▁bind s ▁people ▁into ▁a ▁contract ; ▁bre aching ▁them ▁will ▁mean ▁consequences , ▁oft ent imes ▁mis ery , ▁for ▁them . ▁While ▁multiple ▁people ▁have ▁sw orn ▁under ▁St y x ' ▁name , ▁St y x ▁herself ▁does ▁not ▁appear ▁until ▁The ▁Dark ▁Prop he cy , ▁where ▁she ▁appears ▁in ▁Apol lo ' s ▁vision ▁threaten ing ▁him ▁with ▁pun ishment ▁for ▁breaking ▁his ▁o ath ▁of ▁not ▁playing ▁music ▁or ▁pract icing ▁arch ery ▁until ▁he ▁reg ains ▁his ▁imm ort ality . ▁ ▁T art arus ▁– ▁While ▁T art arus ▁is ▁the ▁name ▁of ▁a ▁location ▁where ▁the ▁Tit ans ▁were ▁imprison ed , ▁there ▁is ▁a ▁prim ord ial ▁god ▁by ▁that ▁name ▁as ▁well . ▁Through ▁G ae a , ▁T art arus ▁father ed ▁Ty phon ▁and ▁the ▁Gi ants . ▁His ▁real ▁form ▁is ▁the ▁whole ▁T art arus ▁itself , ▁but ▁he ▁person ifies ▁himself ▁in ▁a ▁form ▁that ▁stands ▁several ▁feet ▁tall ▁with ▁a ▁face ▁of ▁a ▁sw ir ling ▁vor tex ▁and ▁a ▁voice ▁that ▁makes ▁it ▁seem ▁going ▁in ward , ▁rather ▁than ▁out ward . ▁In ▁The ▁House ▁of ▁H ades , ▁the ▁person ification ▁of ▁T art arus ▁appears ▁in ▁physical ▁form ▁where ▁he ▁makes ▁a ▁remark ▁about ▁G ae a ' s ▁aw ak ening . ▁An