Crimson Moon Oath (en Inglés) - Mary Langley

They were never meant to survive each other.

Lyra is a weapon-cold, controlled, and lethal. A vampire trained to hunt without hesitation.
Kael is the enemy-feral, dangerous, and born to destroy everything she stands for.

They should have killed each other the moment they met.

They didn't.

Instead, something impossible happened.

A bond.

Dark. Obsessive. Unbreakable.

The closer they get, the stronger it becomes-twisting instinct into need, control into possession, and survival into something far more dangerous.

They can't stay apart.

They can't stay together.

And the longer they fight it... the more the bond begins to change them.

Make them ruthless.

Make them violent.

Make them willing to destroy anyone who comes between them.

Even each other.

As war closes in and enemies on all sides hunt them for what they've become, Lyra and Kael are forced to face the truth:

Some bonds aren't meant to be broken.

They're meant to be survived.

Or sacrificed for.

And in the end-

Only one of them can walk away.