Found these while surfing through Amazon.....
Free for your enjoyment today
The Moon Trilogy Novellas
Black Moon (Moon Trilogy 1)
Amber Moon (Moon Trilogy 2)
Silver Moon (Moon Trilogy 3)
Now from what I gather all three are adult only. They look like they are going to be good though so you should check them out.
I also downloaded Harvest Moon which I think i some kind of spin off. (also free right now)