"On a cold night, at the outskirts of a peasant village, two Spartan youths wait to perform an ancient rite of passage. A family--father, mother, and their son--approaches, unarmed and defenseless. The young men step into the moonlight and claim their manhood by killing the adults. The boy escapes. The Spartans have no idea how terrible an enemy they have called forth. Nothing could have prepared them for the boy, Protos, whose name means "destined,"...