Odette’s Vow by Gwyneth Lesley

Torn from her ravaged homeland, Odette – a Trojan woman – harbours one unshakeable desire: revenge. After a cruel and fateful decision thrusts her into servitude under the enigmatic Odysseus, she swears an oath before the gods: if she can never reclaim her life, she will see to it that he also loses his.
Except war is long, and living in close quarters with a general who treats her as a confidant rather than a captive is not what Odette anticipated. When feelings stir, she is forced to choose between the solemn vow that has sustained her, and the traitorous whispers of her human heart.
Will Odette destroy the man who shattered her world, or will she betray everything she once held sacred? One thing is certain – the gods will not allow her to escape the vow she made without a struggle.

Oaths. Vows. Promises. They can bind you … or break you.