- Danger in the darkest hour, Mary Pope Osborne
- The life of Jesus in masterpieces of art, Mary Pope Osborne
- A ghost tale for Christmas time, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Tigers at twilight, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Leonardo da Vinci, a nonfiction companion to Monday with a mad genius, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- Kate and the beanstalk, by Mary Pope Osborne ; illustrated by Giselle Potter
- Earthquake in the early morning, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house series, #10
- Osborne, Mary Pope, Magic tree house series, #19
- A big day for baseball, Mary Pope Osborne
- New York's bravest, by Mary Pope Osborne ; paintings by Steve Johnson and Lou Fancher
- Magic tree house survival guide, Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- Midnight on the moon, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Vacation under the volcano, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house, #13
- Osborne, Mary Pope, Magic tree house series, #9
- Dogs in the dead of night, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Dragons and mythical creatures, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Carlo Molinari
- Buffalo before breakfast, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Narwhal on a sunny night, by Mary Pope Osborne
- The one-eyed giant, by Mary Pope Osborne
- Tsunamis and other natural disasters, a nonfiction companion to High tide in Hawaii, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- Soccer on Sunday, by Mary Pope Osborne ; illustrated by Sal Murdocca
- A crazy day with cobras, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house series, #46
- Osborne, Mary Pope, Magic tree house (Sound recording), 29
- Dinosaurs before dark, Mary Pope Osborne
- World at war, 1944, by Mary Pope Osborne ; illustrated by Sal Murdocca
- 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
- Sirens and sea monsters, by Mary Pope Osborne ; with artwork by Troy Howell
- Osborne, Mary Pope, Magic tree house series, 9
- 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
- Osborne, Mary Pope, Magic tree house series, #51
- Spider Kane and the mystery at Jumbo Nightcrawler's, by Mary Pope Osborne ; illustrated by Victoria Chess
- Osborne, Mary Pope, Magic tree house series, #8
- 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
- American tall tales, by Mary Pope Osborne ; wood engravings by Michael McCurdy
- Leprechauns and Irish folklore, a nonfiction companion to Leprechaun in late winter, Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- The rocking horse Christmas, by Mary Pope Osborne ; illustrated by Ned Bittinger
- Hurry up, Houdini!, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Dinosaurs before dark, Mary Pope Osborne ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house series, 8