The Tiger and Mouse series does not have a new book coming out soon. The latest book, The Pebble of Perseverance (Book 2), was published in March 2013.
The first book in the Tiger and Mouse series, The Gift of Helping Others, was published in February 2012.
The Tiger and Mouse series primarily falls into the General Fiction genre. This middle grade series was written for ages 8-12, but can be enjoyed by older readers as well.