There are 2 books in the Trouble in the Trees series.
The Trouble in the Trees series does not have a new book coming out soon. The latest book, Road Block (Book 2), was published in April 2012.
The first book in the Trouble in the Trees series, Trouble in the Trees, was published in May 2011.
The Trouble in the Trees 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.