- Dinosaurs before dark, Mary Pope Osborne ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house
- Osborne, Mary Pope, Magic tree house series, 33
- Osborne, Mary Pope, Magic tree house series, #2
- Texas, a nonfiction companion to Magic Tree House #30: Hurricane heroes in Texas, Mary Pope Osborne, Natalie Pope Boyce ; illustrated by Isidre Mones
- Osborne, Mary Pope, Magic tree house, #38
- The knight at dawn, written and narrated by Mary Pope Osborne
- Summer of the sea serpent, Mary Pope Osborne ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house series, #30
- My secret war, the World War II diary of Madeline Beck, Mary Pope Osborne
- My brother's keeper, Virginia's diary, by Mary Pope Osborne
- Favorite Greek myths, retold by Mary Pope Osborne ; illustrated by Troy Howell
- Osborne, Mary Pope, Magic tree house series, #51
- Osborne, Mary Pope, Magic tree house series, #8
- Dolphins at daybreak, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Stallion by starlight, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house series, 31
- Tigers at twilight, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Ghosts, a nonfiction companion to a good night for ghosts, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- High tide in Hawaii, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house series, 18
- Mummies in the morning, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house series, #12
- Osborne, Mary Pope, Magic tree house, #3
- Afternoon on the Amazon, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Magic tree house collection, [Mary Pope Osborne], Volume 8
- American tall tales, by Mary Pope Osborne ; wood engravings by Michael McCurdy
- A ghost tale for Christmas time ;, A crazy day with cobras, by Mary Pope Osborne
- Leprechauns and Irish folklore, a nonfiction companion to Leprechaun in late winter, Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- Hurry up, Houdini!, 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, 29
- Osborne, Mary Pope, Magic tree house, #37
- Snow leopards and other wild cats, by Mary Pope Osborne and Jenny Laird ; illustrated by Isidre Monés
- Lions at lunchtime, by Mary Pope Osborne ; illustrated by Sal Murdocca
- A perfect time for pandas, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Dingoes at dinnertime, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house, #47
- Revolutionary War on Wednesday, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Dog heroes, a nonfiction companion to Magic tree house #46: Dogs in the dead of night, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- Late lunch with llamas, by Mary Pope Osborne ; illustrated by AG Ford
- Good morning, gorillas, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house series, #38
- Osborne, Mary Pope, Magic tree house series, 37
- Wild West, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Isidre Monés
- Tigers at twilight, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Kate and the beanstalk, by Mary Pope Osborne ; illustrated by Giselle Potter
- A ghost tale for Christmas time, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Perros salvajes, a la hora de la cena, Mary Pope Osborne ; ilustrado por Sal Murdocca ; traducido por Marcela Brovelli
- Dragons and mythical creatures, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Carlo Molinari