How many books are in the Dark Horse series?

There are 6 books in the Dark Horse series.

When will the next book in the Dark Horse series be released?

The Dark Horse series does not have a new book coming out soon. The latest book, Lust in the Wind (Book 6), was published in August 2012.

The first book in the Dark Horse series, Stimulust Package, was published in June 2012.