Alpha and The Assassin

He's vicious, he's powerful. He doesn't think twice before he kills someone. Everyone respects him most importantly fears him. He will soon be the Alpha of all Alpha, Lycan Prince Aiden, heir to the Kingdom of Werewolves. He's got everything except his mate! She's the darkness, the meaning of terror, she's living in the shadows away from lurking eyes. She's the assassin who has been living on the face of the earth for centuries, killing and hiding! She have known blood and death all her life but what she didn't knew, the biggest battle awaited her, that was with her soul and her mate.