In the year 625, five years after Saker took his place in the Circle as Lightning, he returns home on leave from the war. Instead of rest, he finds renewed rivalry with his brother Gyr; a rivalry which will be played out in a deadly chariot race which can only have one victor. But Saker has another reason to return to Micawater: his lover, Martyn. If she marries him, she will also be made immortal. Can their scandalous love prove stronger than the taboos which hold them apart?