'Tween a Devil and His Hard Place — Sam Cheever

Astra Q Phelps and her Royal Devil, Prince Dialle, must navigate a demon uprising that is rumored to have been instigated by the local Witches' coven. The demons are demanding to be released from service to the Royals so they can have a seat on the Dark Council. When Dialle's father, the king, disappears from his chambers and Astra recognizes the magic signature that's left behind as her parents', she realizes her family has more to do with the unsettling events than she would have hoped. Then a very powerful angel and lifelong friend of the Phelps family tells Astra that her father is under suspicion of being a dark angel and Astra is forced to spy on her own father to try to clear him. It's a whole mess of trouble for one little Tweener to sort through, but Astra Q Phelps is definitely up to the challenge.