Balto of the Blue Dawn (Magic Tree House Merlin Mission)

Balto of the Blue Dawn is the twenty-sixth book in the Merlin Missions series, which is part of the larger Magic Tree House collection of children's chapter books by Mary Pope Osborne. This installment follows the main characters, Jack and Annie, as the magic tree house transports them back to Alaska in 1925. There, they meet the famous Siberian husky sled dog, Balto, and join the historic effort to deliver life-saving diphtheria antitoxin to the isolated town of Nome during a blizzard. The story blends adventure with historical fiction, introducing young readers to a key event in Alaskan and medical history. The book is part of a re-numbering system, having originally been published as Magic Tree House #54. The Magic Tree House series is structured into different levels: the core Magic Tree House books for beginning chapter book readers, the more challenging Merlin Missions for experienced readers, Super Editions for longer adventures, and Fact Trackers for nonfiction exploration.