The #1 bestselling Magic Tree House series is ready to whisk you away through time with Jack and Annie--this time to the Yosemite National Park! The magic tree house whisks Jack and Annie to the Yosemite National Park in 1903. They are surprised to join John Muir and President Theodore Roosevelt on the most significant camping trip in conservation history! Did you know that theres a Magic Tree House book for every kid?Magic Tree House: Perfect for readers who are just beginning chapter booksMerlin Missions: More challenging adventures for the experienced readerFact Trackers: Nonfiction companions to your favorite Magic Tree House adventures If youre looking for Merlin Mission #35: Night of the New Magicians, it was renumbered as part of the rebrand in 2017 as Merlin Mission #7.About author(s):MARY POPE OSBORNE is the author of the New York Times #1 bestselling Magic Tree House series as well as coauthor of the Magic Tree House Fact Tracker series, along with her husband, Will, and her sister, Natalie Pope Boyce.For more information, visit the Magic Tree House website at MagicTreeHouse.com! AG FORD is a New York Times bestselling childrens book illustrator and recipient of two NAACP Image Awards. He grew up in Dallas with his mom, his dad, two sisters, and one brother. He majored in illustration at the Columbus College of Art and Design. He lives with his family in Frisco, Texas. Visit him online at agfordillustration.com.