Let the games begin.

Charlie and Regan have both secretly always wanted a sister. Now, they've finally found each other, only to be forced into a head to head contest for pack alpha. A competition that threatens to destroy their new bond—and one sister's chance at true love.

If Regan wins, will she be able to let go of her feelings for Carter and put duty before desire?

Will Charlie be able to survive long enough to get a fair shot at the alpha competition—and at Owen?

With one sister's life hanging in the balance, will the vampires and werewolves finally forge peace—or will sibling rivalry prove fatal for them all?