Today is the five year anniversary of Will Wight's book House of Blades, he is offering all 3 Travelers Gate books as well as the first 3 books in the Cradle series for free. These are some really great books if you like Fantasy.
I have no affiliation with the author, I just have been a big fan of both of these series.
Traveler's Gate Trilogy [amazon.com]
Cradle Foundation [amazon.com]