While Arcesilaus was living at Barce, accomplishing his own destruction, his mother Pheretime held her son's prerogative at Cyrene, where she administered all his business and sat with others in council. But when she learned of her son's death at Barce, she made her escape to Egypt, trusting to the good service which Arcesilaus had done Cambyses the son of Cyrus; for this was the Arcesilaus who gave Cyrene to Cambyses and agreed to pay tribute. So, on her arrival in Egypt, Pheretime supplicated Aryandes, asking that he avenge her, on the plea that her son had been killed for allying himself with the Medes.