A Map of Days by Ransom Riggs

A brave new world. Unimaginable new dangers. An adventure that has only just begun. The stakes are higher than ever as Jacob and his friends are thrust into the untamed landscape of American peculiardom – a world with few ymbrynes, or rules – that none of them yet understand. New wonders, and dangers, await in this brilliant next chapter for Miss Peregrine’s peculiar children.