Once My Mate, Always My Mate

I lost you once, I won't lose you again. My name is Sabrina and I am the moon goddess. I have a chosen mate by the name Xander and a true mate, chosen for me by the fates and his name is Aiden. When I finally think I have a chance at love again with Alpha Xander, I lose Aiden to my sister, Josey's lover. Cayden, the vampire king has taken residence inside my true mate's body and I have to find a way to release him and save my mate before it's too late and I lose him for good...... Will Cayden go down eas