Title: Mystery of the map
Description: In Mystery of the Map, Oliver, Mya, and Jorge take a ride in a hot-air balloon, only to crash-land on an unknown island filled with extinct animals and a horde of angry Vikings.
Subjects: Imaginary places, Vikings, Islands, Survival, Quests (Expeditions), Comic books, strips, Children's fiction, Survival, fiction, Vikings, fiction, Cartoons and comics, nyt:hardcover-graphic-books=2016-04-10, New York Times bestseller
Places: United States