The slaughter of the Spartan Three Hundred at Thermopylae, Greece 480 BCE-when King Leonidas tried to stop the Persian army with only his elite guard-is well known. But just what did King Xerxes do after he defeated the Greeks? Fifteen-year-old Thaleia is haunted by visions: roofs dripping blood, Athens burning. She tries to convince her best friend and all the villagers that she's not crazy. The gods do speak to her. And the gods have plans for this girl. When Xerxes' army of a million Persians marches straight to the mountain village Delphi to claim the Temple of Apollo's treasures and sacred power, Thaleia's gift may be her people's last line of defense. Her destiny may be to save Greece... ...but is one girl strong enough to stop an entire army?