She thought she was alone. When it's all over, she'll wish she was. Arista and Frees, having beaten the AI known as Charlie, now face new troubles. The Peacekeepers are still hunting the teenager and her autonomous friend as they try to release other machines from the Cadre's grasp. And the worst part is, they're still no closer to finding the secret to Arista's heritage. But when a mysterious call interrupts their fleeting attempts...