The Indigo KingPaperback - 2010
When, in 1931, there is a breach between this world and the Archipelago of Dreams, John and Jack, two of the Caretakers of the Imaginarium Geographica, must race through history using a time travel device left by Jules Verne, and discover the identity of the Cartographer.
Publisher: New York ; Toronto : Simon & Schuster Books for Young Readers, 2010, c2008.
Edition: First Simon & Schuster BFYR paperback edition
Characteristics: viii, 375 pages :,illustrations ;,21 cm.