- 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
- 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
- Stallion by starlight, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house series, 31
- 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
- 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
- Ninjas and samurai, a nonfiction companion to Magic tree house #5 : Night of the ninjas, by Mary Pope Osborne and Natalie Pope Boyce ; 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
- Osborne, Mary Pope, Magic tree house series, 34
- Stallion by starlight, by Mary Pope Osborne
- Danger in the darkest hour, Mary Pope Osborne
- Osborne, Mary Pope, Magic tree house series, #35
- Tonight on the Titanic, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Eve of the Emperor penguin, by Mary Pope Osborne ; [illustrations by Sal Murdocca]
- Osborne, Mary Pope, Magic tree house series, #25
- Season of the sandstorms, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Christmas in Camelot, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Blizzard of the blue moon, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house, #39
- Windy Night with Wild Horses
- Night of the ninth dragon, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Moonlight on the magic flute, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house series, #14
- Osborne, Mary Pope, Magic tree house series, #11
- Osborne, Mary Pope, Magic tree house series, #3
- Carnival at candlelight, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Favorite medieval tales, retold by Mary Pope Osborne ; illustrated by Troy Howell
- Osborne, Mary Pope, Magic tree house series, #7
- Osborne, Mary Pope, Magic tree house series, #24
- Osborne, Mary Pope, Magic tree house series, #49
- Osborne, Mary Pope, Magic tree house series, #1
- Buffalo before breakfast, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house series, #32
- Rhinos at recess, by Mary Pope Osborne ; illustrated by AG Ford
- Haunted castle on Hallows Eve, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Baseball, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Carlo Molinari
- High time for heroes, Mary Pope Osborne
- Night of the new magicians, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house series, #26
- Hurry up, Houdini!, Mary Pope Osborne
- Abe Lincoln at last!, 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