In fact Abraxas has been free all along right here on this blog, but now you can get the Kindle edition for nothing too. It's on Amazon US here, UK here, Germany here, and... well, if you live elsewhere, just change the suffix in the URL to your local Amazon and you'll find it.
The offer lasts all this week, Monday to Friday inclusive (Pacific Standard Time). You don't just get the Abraxas world background, fauna, exotech items and Russ Nicholson's concept drawings, you also get a rare poem by the king of ancient world fantasy, Robert E Howard himself. Crom himself wouldn't give you a sweeter deal.