Merlin the Magician will not eat or sleep or speak to anyonein Camelot. What can be done? The enchantress Morgan knows who toask　for help: young Jack and Annie of Frog Creek, Pennsylvania! Thebrother-and-sister team quickly head off in the magic tree house onanother magical and historical adventure.
　　Their mission: discover one of the four secrets ofhappiness.
　　Their journey: to a land of fierce samurai and great beauty, thecapital city of Edo (now the city of Tokyo), in ancient Japan inthe 1600s.
　　Their tools: a research book to guide them and a magic wand withthree special rules.
　　In Dragon of the Red Dawn, Mary Pope Osborne transports readersback to the splendor, rich culture, and magic of traditionalJapan.
　　From the Hardcover edition.