All Momo wants for her twelfth birthday is a normal life—a life like everyone else's. At home, she has to take care of her absentminded widowed mother. At school, kids ridicule her for mixing up reality with the magical stories her mother used to tell her. But then Momo's mother falls gravely ill, and a death hag straight out of those childhood stories attacks Momo at the mall, where she's rescued by a talking fox . . . and "normal" goes out the window. It turns out that Momo's mother is a banished Shinto goddess who used to protect a long-forgotten passageway to Yomi—a.k.a. the land of the dead. That passageway is now under attack, and countless evil spirits threaten to escape and wreak havoc across the earth. Joined by Niko the fox and Danny—her former best friend turned popular jerk, whom she never planned to speak to again, much less save the world with—Momo must embrace her (definitely not normal) identity as half human, half goddess to unlock her divine powers, save her mother's life, and force the demons back to Yomi.

In the next book in the thrilling fantasy series filled with gods and monsters of Shinto mythology, a twelve-year-old girl must steal an ancient relic, work with new friends and learn to control her own dangerous power to defeat a new threat. After vanquishing a demon king, saving her mom, and reconnecting with her friend Danny, Momo ought to be living the life she's always wanted. But lately, Danny has been ditching her to hang out with mean-girl Ryleigh—and groups of kids have begun vanishing without a trace. Then a whole backyard full of cool kids at Ryleigh's exclusive birthday party becomes the latest to disappear, leaving Momo, Ryleigh, Danny, boy band superstar Jin, and Momo's old friend Niko the fox to fight a dangerous new enemy from Shinto legend. This time they are up against Tamamo-no-mae—beautiful, bloodthirsty, and manipulative, she's the ultimate mean girl of the Kami-verse. To defeat her, Momo must travel to the Sky Kingdom and steal the legendary Mirror of the Sun. But if she’s going to survive monster ambushes, escape giant snakes, and pull off the heist of the millennium, Momo will have to find a way to work with her team (even Ryleigh), and grapple with the growing power that connects her with her storm god grandfather, Susano'o', and her greatest foe—Izanami the Destroyer.