- After the rain, Virginia's Civil War diary, by Mary Pope Osborne
- Stage fright on a summer night, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house (Imagination Studio (Firm)), 54
- To the future, Ben Franklin!, by Mary Pope Osborne ; illustrated by AG Ford
- Dogsledding and extreme sports, a nonfiction companion to Magic tree house #54, Balto of the Blue Dawn, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Carlo Molinari
- Horse heroes, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- Penguins and Antarctica, a nonfiction companion to Eve of the emperor penguins, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- Narwhal on a sunny night, by Mary Pope Osborne ; illustrated by AG Ford
- Rhinos at recess, by Mary Pope Osborne ; illustrated by AG Ford
- Magic tricks from the tree house, a fun companion to Hurry up, Houdini!, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- Haunted castle on Hallows Eve, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Baseball, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Carlo Molinari
- High time for heroes, Mary Pope Osborne ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house series, #23
- Warriors in winter, by Mary Pope Osborne ; illustrated by AG Ford
- Balto of the Blue Dawn, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Stallion by starlight, Mary Pope Osborne ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house series, #25
- Season of the sandstorms, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Christmas in Camelot, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Blizzard of the blue moon, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house, #39
- Night of the ninth dragon, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Moonlight on the magic flute, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house series, #14
- Dogs in the dead of night, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house, #36
- Camp time in California, by Mary Pope Osborne ; illustrated by AG Ford
- Abraham Lincoln, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house series, #13
- Osborne, Mary Pope, Magic tree house, 49
- Dragon of the red dawn, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Leprechaun in late winter, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house series, #53
- Winter of the ice wizard, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Polar bears and the Arctic, a nonfiction companion to polar bears past bedtime, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house series, #21
- Soccer, Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- Dark day in the deep sea, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Danger in the darkest hour, Mary Pope Osborne
- Dinosaurs before dark, [written by Mary Pope Osborne] ; illustrated by Antonio Javier Caparo
- Time of the turtle king, by Mary Pope Osborne ; illustrated by AG Ford
- Osborne, Mary Pope, Magic tree house series, #5
- Sharks and other predators, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Carlo Molinari
- Thanksgiving on Thursday, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Narwhals and other whales, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Isidre Mon©♭s
- Osborne, Mary Pope, Magic tree house series, #27
- Vikings, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Carlo Molinari
- Osborne, Mary Pope, Magic tree house series, #33
- Snakes and other reptiles, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca