His To Have (en Inglés) - Wynne Calder

I have everything except time. As a powerless vampire-siren hybrid with a ticking clock on my life, I'm desperate to find love. But my search for a husband ends with me kidnapped and forced into a contract marriage with Nikolai Volkov, the ruthless heir to the Russian Bratva.

Nikolai spent over a decade hunting his wife's killers. Now he needs a bride to secure his position as leader. I'm not what he expected, and he has no idea I'm famous, that my family leads the Syndicate, or that the underworld is being torn apart searching for me.

The contract is simple: one year, one heir, then freedom. We agree to be friends, nothing more. But as assassination attempts escalate and danger pulls us closer, the heat between us becomes impossible to ignore.

I think we're building something real until one devastating moment shatters everything.