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- 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, #30
- Osborne, Mary Pope, Magic tree house series, #51
- Osborne, Mary Pope, Magic tree house series, #8
- Osborne, Mary Pope, Magic tree house
- Osborne, Mary Pope, Magic tree house series, 33
- Tales from the Odyssey, by Mary Pope Osborne, Part 2
- 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
- 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
- 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
- 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
- Wild West, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Isidre Monés
- 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
- 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 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
- Osborne, Mary Pope, Magic tree house series, #35
- Osborne, Mary Pope, Magic tree house series
- Osborne, Mary Pope, Magic tree house series, #25
- Christmas in Camelot, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Blizzard of the blue moon, 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
- 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
- Osborne, Mary Pope, Magic tree house series, #36
- Sunset of the sabertooth, by Mary Pope Osborne ; 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
- Osborne, Mary Pope, Magic tree house series, #34
- Night of the new magicians, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Sea monsters, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house series, #11
- Osborne, Mary Pope, Magic tree house series, #3
- Osborne, Mary Pope, Magic tree house series, #7
- Osborne, Mary Pope, Magic tree house series, #32
- Late lunch with llamas, by Mary Pope Osborne ; illustrated by AG Ford
- Snow leopards and other wild cats, by Mary Pope Osborne and Jenny Laird ; illustrated by Isidre Monés
- Magic Tree House survival guide, Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- Wild West, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Isidre Monés
- Midnight on the moon, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Vacation under the volcano, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Hurricane heroes in Texas, by Mary Pope Osborne ; illustrated by AG Ford
- Late lunch with llamas, by Mary Pope Osborne
- Christmas in Camelot, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Night of the ninth dragon, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Sunset of the sabertooth, by Mary Pope Osborne ; 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
- 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
- High time for heroes, Mary Pope Osborne ; illustrated by Sal Murdocca
- Balto of the Blue Dawn, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Warriors in winter, by Mary Pope Osborne ; illustrated 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
- Camp time in California, by Mary Pope Osborne ; illustrated by AG Ford
- A big day for baseball, by Mary Pope Osborne ; jacket illustration by Sal Murdocca ; interior illustrations by Ag Ford