Alpha’s Revenge Luna by Jessica Hall

All she-wolves must attend the annual mating ceremony at least once when they turn nineteen—no exceptions, not even for the Alpha’s daughter.
For Emery, it’s nothing more than a formality.
She has no intention of being chosen. No desire to be claimed. As the Alpha’s eldest surviving heir, she is destined to lead her father’s pack.
Until he arrives.
Alpha Dion.
Brutal. Cold. Unstoppable.
A last-minute arrival, he comes with one purpose—vengeance.
He claims her father killed his wife. That Emery will take her place. That he will claim her, and no one will stop him.
And when he destroys her pack, kills her people, and leaves nothing but blood and ruin in his wake—
Emery knows she has lost everything.
But she still has one purpose left.
Her little brother is still alive. She can still save him if she can get to him before Alpha Dion does.
But when she reaches home, it’s already too late.
Her brother is in Dion’s clutches.
And Emery is given a choice.
Become his Luna.
Or watch her brother die.
But Dion has no idea who he just claimed.
Because she was never meant to be his vengeance.
She’s his downfall.