The Indigo King (Chronicles of the Imaginarium Geographica Series)

John and Jack are mystified when they discover a cryptic warning on a medieval manuscript—a warning that is not only addressed to them, but seems to have been written by their friend, Hugo Dyson. But before they can discover the origins of the book, Hugo walks through a door in time—and vanishes into the past.

In that moment, the world begins to change. Now, the Archipelago of Dreams and our world both suffer under the reign of the cruel and terrible Winter King. Dark beasts roam the countr...