There are 2 books in the Cabinet of Earths series.
The Cabinet of Earths series does not have a new book coming out soon. The latest book, A Box of Gargoyles (Book 2), was published in May 2013.
The first book in the Cabinet of Earths series, The Cabinet of Earths, was published in January 2012.
The Cabinet of Earths series primarily falls into the Fantasy genre. This middle grade series was written for ages 8-12, but can be enjoyed by older readers as well.