After Onyx Castle and Meredith Huang gain more influence in their city, they become targets for even more powerful enemies. Not only does the Highdren Powers have eyes on Onyx, but her greatest nemesis is back, plotting to destroy her and everything she holds dear. As if that's not enough, Meredith is cursed with a strange condition that threatens to take her life. Onyx must do whatever it takes to save her fated mate or lose her forever.