Seer of Sevenwaters - Juliet Marillier

The young seer Sibeal is visiting an island of elite warriors, prior to making her final pledge as a druid. It's there she finds Felix, who's lost his memory. Sibeal has a runic divination showing her that Felix must go on a perilous mission--and that she will join him. Prior to making her final pledge as a druid, the young seer Sibeal visits the island of Inis Eala, where the Sight leads her to Felix, a survivor of a Norse shipwreck who has no memory of his past. As the island's healers struggle to keep Felix alive, he and Sibeal form a natural bond. But Sibeal's vocation is her true calling, and she must choose between the two things that tug at her soul-her spirituality and a chance at love...