| # | Book Title | Author | ||
|---|---|---|---|---|
| Games and Puzzles from the Tree House | Osborne, Mary Pope | |||
| Magic Tree House Survival Guide | Osborne, Mary Pope | |||
| More Tricks from the Tree House | Osborne, Mary Pope |
| # | Book Title | Author | ||
|---|---|---|---|---|
| Spider Kane and the Mystery at Jumbo Nightcrawler's | Osborne, Mary Pope | |||
| Spider Kane and the Mystery Under the May-Apple | Osborne, Mary Pope |
| # | Book Title | Author | ||
|---|---|---|---|---|
| 1 | Christmas in Camelot | Osborne, Mary Pope | ||
| 2 | Haunted Castle on Hallow's Eve | Osborne, Mary Pope | ||
| 3 | Summer of the Sea Serpent | Osborne, Mary Pope | ||
| 4 | Winter of the Ice Wizard | Osborne, Mary Pope | ||
| 5 | Carnival at Candlelight | Osborne, Mary Pope | ||
| 6 | Season of the Sandstorms | Osborne, Mary Pope | ||
| 7 | Night of the New Magicians | Osborne, Mary Pope | ||
| 8 | Blizzard of the Blue Moon | Osborne, Mary Pope | ||
| 9 | Dragon of the Red Dawn | Osborne, Mary Pope | ||
| 10 | Monday with a Mad Genius | Osborne, Mary Pope | ||
| 11 | Dark Day in the Deep Sea | Osborne, Mary Pope | ||
| 12 | Eve of the Emperor Penguin | Osborne, Mary Pope | ||
| 13 | Moonlight on the Magic Flute | Osborne, Mary Pope | ||
| 14 | Good Night for Ghosts, A | Osborne, Mary Pope | ||
| 15 | Leprechaun in Late Winter | Osborne, Mary Pope | ||
| 16 | Ghost Tale for Christmas Time, A | Osborne, Mary Pope | ||
| 17 | Crazy Day with Cobras, A | Osborne, Mary Pope | ||
| 18 | Dogs in the Dead of Night | Osborne, Mary Pope | ||
| 19 | Abe Lincoln at Last! | Osborne, Mary Pope | ||
| 20 | Perfect Time for Pandas, A | Osborne, Mary Pope | ||
| 21 | Stallion by Starlight | Osborne, Mary Pope | ||
| 22 | Hurry Up, Houdini! | Osborne, Mary Pope | ||
| 23 | High Time for Heroes | Osborne, Mary Pope | ||
| 24 | Soccer on Sunday | Osborne, Mary Pope | ||
| 25 | Shadow of the Shark | Osborne, Mary Pope | ||
| 26 | Balto of the Blue Dawn | Osborne, Mary Pope | ||
| 27 | Night of the Ninth Dragon | Osborne, Mary Pope |
| # | Book Title | Author | ||
|---|---|---|---|---|
| 1 | Dinosaurs Before Dark | Osborne, Mary Pope | ||
| 2 | Knight at Dawn, The | Osborne, Mary Pope | ||
| 3 | Mummies in the Morning | Osborne, Mary Pope | ||
| 4 | Pirates Past Noon | Osborne, Mary Pope | ||
| 5 | Night of the Ninjas | Osborne, Mary Pope | ||
| 6 | Afternoon on the Amazon | Osborne, Mary Pope | ||
| 7 | Sunset of the Sabertooth | Osborne, Mary Pope | ||
| 8 | Midnight on the Moon | Osborne, Mary Pope | ||
| 9 | Dolphins at Daybreak | Osborne, Mary Pope | ||
| 10 | Ghost Town at Sundown | Osborne, Mary Pope | ||
| 11 | Lions at Lunchtime | Osborne, Mary Pope | ||
| 12 | Polar Bears Past Bedtime | Osborne, Mary Pope | ||
| 13 | Vacation Under the Volcano | Osborne, Mary Pope | ||
| 14 | Day of the Dragon King | Osborne, Mary Pope | ||
| 15 | Viking Ships at Sunrise | Osborne, Mary Pope | ||
| 16 | Hour of the Olympics | Osborne, Mary Pope | ||
| 17 | Tonight on the Titanic | Osborne, Mary Pope | ||
| 18 | Buffalo Before Breakfast | Osborne, Mary Pope | ||
| 19 | Tigers at Twilight | Osborne, Mary Pope | ||
| 20 | Dingoes at Dinnertime | Osborne, Mary Pope | ||
| 21 | Civil War on Sunday | Osborne, Mary Pope | ||
| 22 | Revolutionary War on Wednesday | Osborne, Mary Pope | ||
| 23 | Twister on Tuesday | Osborne, Mary Pope | ||
| 24 | Earthquake in the Early Morning | Osborne, Mary Pope | ||
| 25 | Stage Fright on a Summer Night | Osborne, Mary Pope | ||
| 26 | Good Morning, Gorillas | Osborne, Mary Pope | ||
| 27 | Thanksgiving on Thursday | Osborne, Mary Pope | ||
| 28 | High Tide in Hawaii | Osborne, Mary Pope | ||
| 29 | Big Day for Baseball, A | Osborne, Mary Pope | ||
| 30 | Hurricane Heroes in Texas | Osborne, Mary Pope | ||
| 31 | Warriors in Winter | Osborne, Mary Pope | ||
| 32 | To the Future, Ben Franklin! | Osborne, Mary Pope | ||
| 33 | Narwhal on a Sunny Night | Osborne, Mary Pope | ||
| 34 | Late Lunch with Llamas | Osborne, Mary Pope | ||
| 35 | Camp Time in California | Osborne, Mary Pope |
| # | Book Title | Author | ||
|---|---|---|---|---|
| 1 | One-Eyed Giant, The | Osborne, Mary Pope | ||
| 2 | Land of the Dead, The | Osborne, Mary Pope | ||
| 3 | Sirens and Sea Monsters | Osborne, Mary Pope | ||
| 4 | Gray-Eyed Goddess, The | Osborne, Mary Pope | ||
| 5 | Return to Ithaca | Osborne, Mary Pope | ||
| 6 | Final Battle, The | Osborne, Mary Pope |
| # | Book Title | Author | ||
|---|---|---|---|---|
| 1 | World at War, 1944 (2017); Danger in the Darkest Hour (2015) | Osborne, Mary Pope |
| # | Book Title | Author | ||
|---|---|---|---|---|
| 9 | Dolphins and Sharks | Osborne, Mary Pope | ||
| 10 | Ancient Greece and the Olympics | Osborne, Mary Pope | ||
| 11 | American Revolution | Osborne, Mary Pope | ||
| 12 | Sabertooths and the Ice Age | Osborne, Mary Pope | ||
| 13 | Pilgrims | Osborne, Mary Pope | ||
| 14 | Ancient Rome and Pompeii | Osborne, Mary Pope | ||
| 15 | Tsunamis and Other Natural Disasters | Osborne, Mary Pope | ||
| 16 | Polar Bears and the Arctic | Osborne, Mary Pope | ||
| 17 | Sea Monsters | Osborne, Mary Pope | ||
| 18 | Penguins and Antarctica | Osborne, Mary Pope | ||
| 19 | Leonardo da Vinci | Osborne, Mary Pope | ||
| 20 | Ghosts | Osborne, Mary Pope | ||
| 21 | Leprechauns and Irish Folklore | Osborne, Mary Pope | ||
| 22 | Rags and Riches: Kids in the Time of Charles Dickens | Osborne, Mary Pope | ||
| 23 | Snakes and Other Reptiles | Osborne, Mary Pope | ||
| 24 | Dog Heroes | Osborne, Mary Pope | ||
| 25 | Abraham Lincoln | Osborne, Mary Pope | ||
| 26 | Pandas and Other Endangered Species | Osborne, Mary Pope | ||
| 27 | Horse Heroes | Osborne, Mary Pope | ||
| 28 | Heroes for All Times | Osborne, Mary Pope | ||
| 29 | Soccer | Osborne, Mary Pope | ||
| 30 | Ninjas and Samurai | Osborne, Mary Pope | ||
| 31 | China | Osborne, Mary Pope | ||
| 32 | Sharks and Other Predators | Osborne, Mary Pope | ||
| 33 | Vikings | Osborne, Mary Pope | ||
| 34 | Dogsledding and Extreme Sports | Osborne, Mary Pope | ||
| 35 | Dragons and Mythical Creatures | Osborne, Mary Pope | ||
| 36 | World War II | Osborne, Mary Pope | ||
| 37 | Baseball | Osborne, Mary Pope | ||
| 38 | Wild West | Osborne, Mary Pope | ||
| 39 | Texas | Osborne, Mary Pope | ||
| 40 | Warriors | Osborne, Mary Pope | ||
| 41 | Benjamin Franklin | Osborne, Mary Pope | ||
| 42 | Narwhals and Other Whales | Osborne, Mary Pope | ||
| 43 | Llamas and the Andes | Osborne, Mary Pope |
| # | Book Title | Author | ||
|---|---|---|---|---|
| 1763 | Standing in the Light: The Captive Diary of Catharine Carey Logan, Delaware Valley, Pennsylvania | Osborne, Mary Pope | ||
| 1941 | My Secret War: The World War II Diary of Madeline Beck, Long Island, New York | Osborne, Mary Pope |
| # | Book Title | Author | ||
|---|---|---|---|---|
| 1863 | My Brother's Keeper: Virginia's Diary, Gettysburg, Pennsylvania | Osborne, Mary Pope | ||
| 1864 | After the Rain: Virginia's Civil War Diary, Book Two, Washington, D.C. | Osborne, Mary Pope | ||
| 1865 | Time to Dance: Virginia's Civil War Diary, Book Three, New York City | Osborne, Mary Pope |