Nick Prasad has always enjoyed a quiet life in the shadow of his best friend, child prodigy and technological genius Joanna Johnny Chambers. But all that is about to end. When Johnny invents a clean reactor that could eliminate fossil fuels and change the world, she awakens primal, evil Ancient Ones set on subjugating humanity. From the oldest library in the world to the ruins of Nineveh, hunted at every turn, they will need to trust each other completely to survive All the Birds in the Sky meets Lovecraft Country in this whimsical coming-of-age story about two kids in the middle of a war of eldritch horrors from outside spacetime.