I am offering Book I of my trilogy, When Women Were Warriors, as a free download from my website:
http://www.catherinemwilson.com/free-ebook.html
Formats are .prc (Mobipocket and Kindle), pdf, and ePub.
There's lots of information about the book here:
http://www.whenwomenwerewarriors.com/
I offered the book in Kindle format first. That thread includes some comments and discussion. It's here:
https://www.mobileread.com/forums/showthread.php?t=41119
Catherine M. Wilson
http://www.whenwomenwerewarriors.com/
http://www.catherine-m-wilson.com/