Indigo King

On a September evening in 1931, John and Jack, two of the Caretakers of the Imaginarium Geographica, discover a plea for help on an ancient medieval parchment. It seems to have been written by their friend, Hugo Dyson! But when they rush to warn him, they find that Hugo has already been abducted by fierce creatures called the Un-Men, who have mistaken him for the third Caretaker, Charles. And in t...