Moonlight and Shadows — Cora Zane

Two Werekind packs teeter on the edge of war. Someone has killed the Istvaan alpha, and Sylvie won't rest until justice is served. Forced into a meeting with her greatest rival, she's shocked to discover her mate is none other than the Dartega alpha's right hand man -- his assassin, Erik.

Sylvie realizes she'll never be able to claim her true mate, but there are other, more important things to do than mourn a broken heart.

There's just one problem. Erik has waited a long time to find her, and pack affiliations mean nothing to a man on the hunt.