Mary Pope Osborne is the author of the New York Times number one bestselling Magic Tree House series as well as co-author of the Magic Tree House Fact Tracker series, along with her husband, Will, and her sister, Natalie Pope Boyce.

Jenny Laird is an award-winning playwright. She collaborates with Will Osborne and Randy Courts on creating musical theater adaptations of the Magic Tree House series for both national and international audiences. Their work also includes shows for young performers, available through Music Theatre International's Broadway Junior Collection. Currently the team is working on a Magic Tree House animated television series.