Falling into the White by Christine Michelle

Failed werewolf to leader of my kind…
Only me!

In order to unite the two breeds of werewolves, the Ancients and the Lessers, I have to put a stop to the tyrannical rule of the current werewolf King – Antoine DéLune. It won’t happen until I come into my full power. That won’t happen unless I choose a mate.
I have to choose between Evan – whose claim I already accepted once or Mikael, his brother – who was forced into my life.
One will help me embrace my destiny, while the other is fated to destroy it.
There’s no way of knowing which one is my future or my end.
Oh, and the kicker, Antoine DéLune is their father!

This is book 2 of 4 in The Ancients Series.