Stellarlune (9) (Keeper of the Lost Cities) by Shannon Messenger

Stellarlune is the ninth book in the Keeper of the Lost Cities series by Shannon Messenger. Sophie Foster faces new challenges as the war against the Neverseen intensifies. With her powers evolving and the stakes higher than ever, Sophie must confront the darkness within and navigate a world filled with betrayal and unexpected alliances. The book continues to delve into the complexities of friendship, trust, and the battle between light and shadow.