The Annie Shepard series does not have a new book coming out soon. The latest book, Mystery at the Old Stamp Mill (Book 3), was published in January 1997.
The first book in the Annie Shepard series, Mystery at the Fairgrounds, was published in January 1997.
The Annie Shepard series primarily falls into the Christian Mystery genre. This middle grade series was written for ages 8-12, but can be enjoyed by older readers as well.