The Private Eye Cats series does not have a new book coming out soon. The latest book, The Case of the Kidnapped Dog (Book 2), was published in March 2013.
The first book in the Private Eye Cats series, The Case of the Neighborhood Burglars, was published in February 2012.
The Private Eye Cats series primarily falls into the Mystery genre. This middle grade series was written for ages 8-12, but can be enjoyed by older readers as well.