The Fallen Hero (The Dragon Warrior, Book #2) by Katie Zhao
This Chinese mythology-inspired middle-grade fantasy series continues as heroine Faryn Liu embarks on a quest to save her brother and defeat the demons--perfect for fans of the Aru Shah and Kiranmala and the Kingdom Beyond books.
Faryn Liu thought she was the Heaven Breaker, a warrior destined to wield the all-powerful spear Fenghuang, command dragons, and defeat demons. But a conniving goddess was manipulating her all along . . . and her beloved younger brother, Alex, has betrayed her and taken over as the Heaven Breaker instead. Alex never forgave the people who treated him and Faryn like outcasts, and now he wants to wipe out both the demons and most of humanity.
Determined to prevent a war and bring Alex back to her side, Faryn and her half-dragon friend Ren join the New Order, a group of warriors based out of Manhattan's Chinatown. She learns that one weapon can stand against Fenghuang--the Ruyi Jingu Bang. Only problem? It belongs to an infamous trickster, the Monkey King.
Faryn sets off on a daring quest to convince the Monkey King to join forces with her, one that will take her to new places--including Diyu, otherwise known as the underworld--where she'll run into new dangers and more than one familiar face. Can she complete her mission and save the brother she loves, no matter the cost?
This richly woven middle-grade fantasy series, full of humor, magic, and heart, will appeal to readers who love Roshani Chokshi and Sayantani DasGupta.