There are 5 books in The Code Busters Club series.
The Code Busters Club series does not have a new book coming out soon. The latest book, The Hunt for the Missing Spy (Book 5), was published in November 2015.
The first book in The Code Busters Club series, The Secret of the Skeleton Key, was published in September 2011.
The Code Busters Club series primarily falls into the Suspense genre. This middle grade series was written for ages 8-12, but can be enjoyed by older readers as well.