The Prince's Guide to Brothers and Rituals - Wingomia Guide Series, #2

Ace had a choice: Assist in a blood spell to restore magic to the kingdom, or watch his friends die. It wasn't really a choice. He'd never asked to be a prince or torn away from everything he loved. Jack did not risk his life getting his long-lost brother home just to watch Ace sacrifice himself in a risky spell. If he has to trek all over the kingdom again to stop Ace less than a week after coming home, then so be it.
This time, the queen will help him fight off the demons and revolutionists, and they'll figure out how to save Ace and the kingdom together. But can he stop the spell before the returning magic wrecks the kingdom?