China : land of the emperor's Great Wall : a nonfiction companion to Magic Tree House #14 : Day of the dragon kingby Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
Sharks and other predators : a nonfiction companion to Magic Tree House, Merlin mission #25 : Shadow of the Sharkby Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
Dogsledding and extreme sports : a nonfiction companion to Magic Tree House, Merlin mission #26 : Balto of the Blue Dawnby Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
Dragons and mythical creatures : a nonfiction companion to Magic Tree House, Merlin mission #27 : Night of the Ninth Dragonby Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
Texas : a nonfiction companion to Magic Tree House #30 : Hurricane heroes in Texasby Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
Rain forests : a nonfiction companion to magic tree house #6, Afternoon on the Amazonby Will Osborne and Mary Pope Osborne ; illustrated by Sal Murdocca
