Three Powers: the three erinyes.
"The Trojan Women of Euripides"
Euripides
When he thought of the menacing fire of her dark eyes, she seemed to him as terrible as one of the unlovely creatures born of Night, the erinyes, Apate, and Eris.
"The Complete Historical Romances of Georg Ebers"
Georg Ebers
To Nemesis with them, to Ate and the erinyes!
"The Complete Historical Romances of Georg Ebers"
Georg Ebers