The Ex Files by Kelly McClymer is free for two weeks, due to Backlist eBooks hitting a new subscriber milestone. Just got the e-mail this morning (Oct 3, 2102) and here is the link to the Backlist e-books site which tells about it, and has links for mobi and ePub downloads:
http://backlistebooks.com/freebie/index.html
This was previously on sale, but now is free for a couple of weeks.