- To the future, Ben Franklin!, by Mary Pope Osborne ; illustrated by AG Ford
- Polar bears past bedtime, Mary Pope Osborne
- Camp time in California, by Mary Pope Osborne ; illustrated by AG Ford
- Fourteen days, a literary project of the Authors Guild of America, edited by Margaret Atwood and Douglas Preston
- 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
- Stage fright on a summer night, Mary Pope Osborne
- Baseball, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Carlo Molinari
- Civil War on Sunday, Mary Pope Osborne
- Hurricane heroes in Texas, by Mary Pope Osborne
- Narwhal on a sunny night, by Mary Pope Osborne ; illustrated by AG Ford
- Mummies in the morning, Mary Pope Osborne
- Hour of the Olympics, Mary Pope Osborne
- Hurricane heroes in Texas, Mary Pope Osborne
- Knights and castles, a non fiction companion to Magic Tree House #2: The knight at dawn, by Will Osborne and Mary Pope Osborne ; illustrated by Sal Murdocca
- Balto of the blue dawn, Mary Pope Osborne
- Dinosaurs before dark, Mary Pope Osborne
- Revolutionary War on Wednesday, Mary Pope Osborne
- Revolutionary War on Wednesday, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Magic tree house, Mary Pope Osborne, 53
- Fourteen days, a literary project of the Authors Guild of America, edited by Margaret Atwood and Douglas Preston
- Time of the turtle king, Mary Pope Osborne
- Soccer on Sunday, by Mary Pope Osborne ; illustrated by Sal Murdocca
- High time for heroes, Mary Pope Osborne ; illustrated by Sal Murdocca
- Dinosaurs before dark, [written by Mary Pope Osborne] ; illustrated by Antonio Javier Caparo
- Dingoes at dinnertime, Mary Pope Osborne
- World War II, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Carlo Molinari
- Pirates past noon, by Mary Pope Osborne
- Shadow of the shark, Mary Pope Osborne ; illustrated by Sal Murdocca
- Buffalo before breakfast, Mary Pope Osborne
- Summer of the sea serpent, Mary Pope Osborne ; illustrated by Sal Murdocca
- Lions at lunchtime, Mary Pope Osborne
- China, land of the emperor's Great Wall, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Carlo Molinari
- Danger in the darkest hour, by Mary Pope Osborne ; illustrated by Sal Murdocca
- A big day for baseball, by Mary Pope Osborne ; illustration by Sal Murdocca ; interior illustrations by AG Ford
- Narwhal on a sunny night, by Mary Pope Osborne
- Magic Tree House #17: Tonight on the Titanic, Mary Pope Osborne
- Earthquake in the early morning, Mary Pope Osborne
- Time of the turtle king, by Mary Pope Osborne ; illustrated by AG Ford
- Camp time in California, by Mary Pope Osborne ; illustrated by AG Ford
- Magic tree house incredible fact book, Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- Warriors in winter, Mary Pope Osborne
- Baseball, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Carlo Molinari
- Sunlight on the snow leopard, by Mary Pope Osborne ; illustrated by AG Ford
- Ninjas and samurai, a nonfiction companion to Magic tree house #5 : Night of the ninjas, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- Magic tree house survival guide, Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- Fourteen days, a collaborative novel, edited by Margaret Atwood and Douglas Preston
- The knight at dawn, Mary Pope Osborne
- Danger in the darkest hour, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Carnival at candlelight, by Mary Pope Osborne
- Late lunch with llamas, by Mary Pope Osborne ; illustrations by AG Ford