There are 3 books in the Ally O'Connor Adventures series.
The Ally O'Connor Adventures series does not have a new book coming out soon. The latest book, Hoofbeats on the Trail (Book 3), was published in October 2002.
The first book in the Ally O'Connor Adventures series, Tracks in the Sand, was published in November 2001.
The Ally O'Connor Adventures series primarily falls into the Action Adventure genre. This middle grade series was written for ages 8-12, but can be enjoyed by older readers as well.