Dark Sun at Midnight — Sharon Wagner

Betrayed by the man she loves, Bridget O'Neill flees to Iceland to stay with her mother's people. But her new life is filled with strange, unexplained dangers, including Llewelyn Pryce, an intense, magnetic man. Claiming interest in her Druidic forebears, he draws Bridget to him, and she finds herself involved in a frightening study of her awesome ancestors, Disadree.

As she narrowly escapes from a series of bizarre, near-fatal accidents, Bridget comes to realize that it is the long-dead Disadree who can save her, for in her own past was the answer to her present peril…