My Immortal Promise by Jen Holling

On the heels of her "enchanting and action-packed" (Romantic Times) novel My Immortal Protector, acclaimed author Jen Holling returns to a mystical world where the all-too-human desires of rugged Drake MacKay entwine with the icy cunning of one with the power to heal -- or curse....

Drake MacKay is no stranger to the double-edged powers of blood witches. His own niece Deidra and his best friend were saved by a baobhan sith: Hannah O'Shea, the same spirit who would not heal Drake's dying wife. Nearly consumed by grief and fury, Drake is nevertheless bound by an unholy promise: for those she gave life, he has pledged his own.

Returning to Hannah's remote isle, Drake is stunned to be released from his obligation. And when he overhears a violent plot stirred up by villagers, he finds himself irresistibly called to warn her -- and escapes with her into the night. Alive for more than a century, Hannah has found the words of mortal men to be bitter lies. But there is darkness in their shared past, an evil that threatens Drake's family. Forced to unite, they discover a fire between them that melts their distrust...and a furious passion that may just save them both.

This book is part of the "MacDonell Brides" series.
Here are some other books from this series: