Stone Cold Revenge by Jess Macallan
Forced by her maniacal father, the king of the shadow elves, to live in his house and train to become his heir, newly minted princess of the paranormal Elleodora Fredricks doesn't think things could get much more complicated. On the outs with her gargoyle love interest, Jax, and confused about her relationship with her childhood sweetheart, MacLean the phoenix, Elle knows her fate decrees that her powers will manifest themselves in full on her twenty-eighth birthday, which is quickly approaching... With help from two long-lost family members, some long-forgotten memories, and even her long-gone mother, Elle discovers there's more to being part shadow elf than she ever knew. But will she be able to harness her unique abilities in time to take revenge on her enemies? For Elle, it's all in a day's work...