In early winter, at the dark of the moon, Rioghan is visited by warriors. Their leader is Donaill, the king's champion. She has watched him pause in the standing-stone circle of the Sidhe, seen his reaction to their beautiful music; but she has also seen his men's greed. And she alone is guardian of the fairy folk's treasure. Yet Donaill seeks not wealth, but aid. There is a woman the druids have failed, whom only Rioghan can heal. And though Rioghan sees great troubles ahead, she suddenly feels she and Donaill can overcome even those dangers. Together they will prove that the greatest power is always that of love.