Paths of the Shadow, permafree.
Some authors firmly believe in the principle of "zero price = zero value", and are offended by the mere idea of giving their book away for free, but I disagree. As a matter of fact, this ability to make a book permafree and not worry about setting up free promotional days once a quarter, was part of what swayed me in the direction of going wide.
The concept of taking something you have poured blood, sweat and time into, and just offer it for download, may rankle when you only have a book or two out, but the more books you publish, the more it makes sense. There's nothing like offering the first in a series (or a stand-alone book that is one of several in a similar setting) for free to funnel new readers to buy the rest.
This tactic is successfully used by those people who promote new products in supermarket stalls, as well as by dope dealers - give a free sample to get people hooked so that they will pay for the rest.
Naysayers will claim that people who download free books are only looking for freebies and don't often bother to read what they grabbed anyway. But if a series has been sitting on a shelf for years and doesn't get much traction, the chance of getting some readers - even without getting paid - is better than nothing.
If you get a 1,000 people to download your book, 100 of them might read it, 10 might like it, and one might love it so much that they become your diehard fan and buy all of your books, give you a bunch of glowing, genuine reviews and recommend your book to others. It's all about numbers - the more pebbles you throw into a pond, the more ripples you create.
So if you like epic fantasy, medieval settings, dark magic and lots of intrigue, go ahead and grab your copy of Paths of the Shadow.