Mabel is a rumored witch whose kingdom belongs to Lavian, the Serpent. Her people are enslaved in Darkness, but everything changes when Mabel discovers a book that transports her to a world of angels and demons. There, she wields swords of fire and faces Tannin, a spirit-infested dragon. Mabel sets off to save her people, unaware that she’ll find Eva along the way—that mystic lady, thrown away in time—and in doing so find herself. Mabel even learns how to break the Darkness, but Lavian has different plans. Mabel wants to set her people free, make peace with her past, and start a new life. She wants to be a fighter and protector of the ones she loves. When life becomes a curse, can Mabel end the Darkness before destroying herself?