- Osborne, Mary Pope, Magic tree house, #38
- Osborne, Mary Pope, Magic tree house series, #30
- 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
- Ancient Rome and Pompeii, a nonfiction companion to Vacation under the volcano, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house series, 31
- Osborne, Mary Pope, Magic tree house (Sound recording), #34
- Late lunch with llamas, by Mary Pope Osborne ; illustrated by AG Ford
- Osborne, Mary Pope, Magic tree house series, #38
- Osborne, Mary Pope, Magic tree house series, 29
- Magic Tree House survival guide, Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- 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
- Tales from the Odyssey, by Mary Pope Osborne, Part 2
- Osborne, Mary Pope, Magic tree house series, 33
- Sea monsters, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- A crazy day with cobras, by Mary Pope Osborne ; 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 series, #9
- Hurricane heroes in Texas, by Mary Pope Osborne ; illustrated by AG Ford
- Twister on Tuesday, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Late lunch with llamas, by Mary Pope Osborne
- Ancient Greece and the Olympics, a nonfiction companion to Hour of the Olympics, y Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- Sunlight on the snow leopard, by Mary Pope Osborne ; illustrated by AG Ford
- Llamas and the Andes, late lunch with llamas, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Isidre Monés
- Shadow of the shark, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house series, #25
- Christmas in Camelot, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Night of the ninth dragon, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house (Imagination Studio (Firm))
- Monday with a mad genius, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house series, #34
- 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
- Osborne, Mary Pope, Magic tree house, 33
- Hour of the Olympics, by Mary Pope Osborne ; illustrated by Sal Murdocca
- 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
- Narwhal on a sunny night, Mary Pope Osborne ; illustrations by AG Ford
- To the future, Ben Franklin!, by Mary Pope Osborne ; illustrated by AG Ford
- Narwhal on a sunny night, by Mary Pope Osborne ; illustrated by AG Ford
- Osborne, Mary Pope, Magic tree house series, #13
- Civil War on Sunday, Mary Pope Osborne ; illustrated by Sal Murdocca
- Stage fright on a summer night, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house (Imagination Studio (Firm)), 54
- Osborne, Mary Pope, Magic tree house series, #11
- Osborne, Mary Pope, Magic tree house series, #3