As Alainn and Killian O'Brien begin their married life together, Alainn encounters many new and unexpected challenges. Stricken by the disturbing, reoccurring vision of Killian's death, she desperately seeks a way to prevent it from happening. In hope of providing a normal life for their unborn child Alainn turns from her own magical abilities, but soon realizes that doing so may endanger everyone she cares for.

Set in 16th century Ireland, A Chieftain's Wife continues the captivating story of Alainn and Killian's passionate love. Past indiscretions, deep jealousy, a vindictive witch, and tragic hardships all threaten to disrupt Killian and Alainn's happiness and future together.