There are 44 books in the Magic Tree House Research Guides series.
The Magic Tree House Research Guides series does not have a new book coming out soon. The latest book, Snow Leopards and Other Wild Cats (Book 44), was published in January 2022.
The first book in the Magic Tree House Research Guides series, Dinosaurs, was published in November 2000.
The Magic Tree House Research Guides series primarily falls into the General Fiction genre. This chapter book series was written for ages 7-10, but some older readers may still like to read these books.