Shattered by Anna Hawke

Six legions. Two immortals. One secret that could kill them both.

Centuries ago, the immortal world shattered. The Queen was murdered, the royal bloodline lost, and the six ruling legions have been slowly crumbling ever since. Without the Queen, their magic corrupts—and their people with it.
Jade has spent her life fighting for control—of herself, her business, and the world around her. When the ruthless CEO who engineered her downfall is revealed to be an immortal from a rival legion—and her fated mate—everything she built threatens to come undone.
Niko has one goal: slay the First Legion’s leader and avenge the past. Destroying Julian’s corporate interests should have been simple—until he discovers his sworn enemy’s fiercest defender is also the woman fate marked as his. Torn between duty and desire, Niko must decide whether his thirst for revenge is stronger than the soul-deep bond he was born to claim.

Bound by passion but divided by loyalty, Jade and Niko are enemies by birth … and something far more dangerous by fate.