If you want to know how many Magic Tree House books exist, the answer depends on whether you count just the main fiction adventures or include the nonfiction companion guides. Written by Mary Pope Osborne and illustrated by Sal Murdocca, the franchise spans more than 100 books. Specifically, there are 66 main fiction books and 44 Fact Tracker nonfiction companion books, totaling 110 core books, alongside special editions and graphic novels.
Keeping track of this massive series can get confusing because the author and publishers restructured the numbering system over the years. If you're trying to figure out the proper reading order or want the complete breakdown of every title published, here is everything you need to know.
Understanding the Magic Tree House Structure
The series follows Jack and Annie, two ordinary kids from Pennsylvania who discover a mysterious tree house filled with books. Opening a book and wishing to visit its setting transports them through time and space.
To make sense of the checklist, publishers divide the collection into distinct categories:
- The Original/Main Series: The foundational chapter books that started with Dinosaurs Before Dark in 1992.
- Merlin Missions: Longer, more magical adventures that originally picked up after book 28 but were later renumbered as an independent sub-series.
- Super Editions: Extra-long standalone adventures, such as Danger in the Darkest Hour.
- Fact Trackers: Nonfiction research guides co-written with Mary Pope Osborne's sister (Natalie Pope Boyce) or husband (William Osborne), designed to pair with specific fiction plots.
The Main Fiction Series in Order
The core fiction books form the backbone of the franchise. In 2017, the publisher separated the fantasy-heavy Merlin Missions from the main line, renumbering the original timeline. Here are the primary fiction milestones tracking Jack and Annie's adventures:
- Dinosaurs Before Dark (1992)
- The Knight at Dawn (1993)
- Mummies in the Morning (1993)
- Pirates Past Noon (1994)
- Night of the Ninjas (1995)
- Afternoon on the Amazon (1995)
- Sunset of the Sabertooth (1996)
- Midnight on the Moon (1996)
- Dolphins at Daybreak (1997)
- Ghost Town at Sundown (1997)
- Lions at Lunchtime (1998)
- Polar Bears Past Bedtime (1998)
- Vacation Under the Volcano (1998)
- Day of the Dragon King (1998)
- Viking Ships at Sunrise (1998)
- Hour of the Olympics (1998)
- Tonight on the Titanic (1999)
- Buffalo Before Breakfast (1999)
- Tigers at Twilight (1999)
- Dingoes at Dinnertime (2000)
- Civil War on Sunday (2000)
- Revolutionary War on Wednesday (2000)
- Twister on Tuesday (2001)
- Earthquake in the Early Morning (2001)
- Stage Fright on a Summer Night (2002)
- Good Morning, Gorillas (2002)
- Thanksgiving on Thursday (2002)
- High Tide in Hawaii (2003)
- A Big Day for Baseball (2017)
- Hurricane Heroes in Texas (2018)
- Warriors in Winter (2019)
- To the Future, Ben Franklin! (2019)
- Narwhal on a Sunny Night (2020)
- Late Lunch with Llamas (2020)
- Camp Time in California (2021)
- Sunlight on the Snow Leopard (2022)
- Rhinos at Recess (2023)
- Time of the Turtle King (2023)
- Windy Night with Wild Horses (2024)
- Sea Otter Sunrise (2025)
The Merlin Missions
Originally published as part of the main sequence (books 29 through 55), the Merlin Missions feature longer stories where King Arthur's wizard, Merlin, sends Jack and Annie on high-stakes quests. They were later spun off into their own dedicated sub-series. Notable titles include Christmas in Camelot, Summer of the Sea Serpent, Winter of the Ice Wizard, and Night of the Ninth Dragon. There are 27 books in this specific track.
Fact Tracker Nonfiction Guides
To satisfy young readers' curiosity about the real history, science, and animals featured in the stories, Mary Pope Osborne created the Magic Tree House Fact Trackers (originally called Research Guides). These companion books match up with specific fiction titles. For example, when Jack and Annie visit dinosaurs in book one, readers can dive deeper with the Dinosaurs Fact Tracker. There are 44 published nonfiction guides covering topics ranging from ancient Egypt and space to rainforests and Leonardo da Vinci.
You can explore comprehensive library tracking and author updates directly via the Official Magic Tree House Site.
Common Reader Questions
Do children need to read the books in exact order?
While each book features a self-contained adventure, reading them in order helps children follow the character development and recurring plot elements, such as how Jack and Annie earn their special magic library cards. However, jumping straight to a specific historical era or topic that a child loves won't ruin the experience.
What reading level are Magic Tree House books?
Most books in the series sit at a second-to-fourth-grade reading level (typically targeted at ages 6 to 10). They serve as an ideal bridge between early reader picture books and full-length middle-grade novels, featuring short chapters, large text, and illustrations on nearly every spread.
Are there graphic novel adaptations?
Yes. Random House has adapted several classic adventures into full-color graphic novels. Titles like Dinosaurs Before Dark Graphic Novel and The Knight at Dawn Graphic Novel offer an alternative format for reluctant readers or younger fans transitioning into chapter books.
Are any new books still being published?
Mary Pope Osborne continues to expand the universe. New fiction installments and accompanying Fact Trackers arrive regularly, ensuring the franchise remains active decades after its initial launch. For broader publishing milestones and author backgrounds, you can review the Random House Author Page.
