- Stallion by starlight, Mary Pope Osborne ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house series, 19
- Haunted castle on Hallows Eve, by Mary Pope Osborne ; illustrated by Sal Murdocca
- High time for heroes, Mary Pope Osborne
- Ghost town at sundown, by Mary Pope Osborne ; illustrated by Sal Murdocca
- The knight at dawn, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house series, #20
- China, land of the emperor's Great Wall, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Carlo Molinari
- Camp time in California, by Mary Pope Osborne
- Hour of the Olympics, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house series, #45
- Osborne, Mary Pope, Magic tree house series, #21
- Soccer, Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house series, 15
- Dark day in the deep sea, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Danger in the darkest hour, Mary Pope Osborne
- Dinosaurs before dark, [written by Mary Pope Osborne] ; illustrated by Antonio Javier Caparo
- Osborne, Mary Pope, Magic tree house series, #31
- Time of the turtle king, by Mary Pope Osborne ; illustrated by AG Ford
- Osborne, Mary Pope, Magic tree house series, #5
- Osborne, Mary Pope, Magic tree house series, #33
- Snakes and other reptiles, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house series, #28
- Sharks and other predators, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Carlo Molinari
- Thanksgiving on Thursday, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Narwhals and other whales, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Isidre Mon©♭s
- Osborne, Mary Pope, Magic tree house, #30
- Osborne, Mary Pope, Magic tree house series, #27
- Vikings, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Carlo Molinari
- Magic tree house CD edition, Mary Pope Osborne, Books 9-16
- Pilgrims, a nonfiction companion to Thanksgiving on Thursday, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- Abraham Lincoln, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house series, #13
- Osborne, Mary Pope, Magic tree house, 49
- Dragon of the red dawn, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Leprechaun in late winter, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house (Sound recording), #32
- Osborne, Mary Pope, Magic tree house (Sound recording), #35
- Christmas in Camelot, Mary Pope Osborne ; illustrated by Antonio Javier Caparo
- Stage fright on a summer night, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house (Imagination Studio (Firm)), 54
- Dogs in the dead of night, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house, #36
- Camp time in California, by Mary Pope Osborne ; illustrated by AG Ford
- Osborne, Mary Pope, Magic tree house series, #53
- Winter of the ice wizard, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house (Sound recording), #53
- 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
- A big day for baseball, by Mary Pope Osborne ; jacket illustration by Sal Murdocca ; interior illustrations by Ag Ford
- Magic tree house, Mary Pope Osborne, Books 25-28