Malice by John Gwynne is one of the Kindle Daily Deals today, so the sale price os $2.99 is only good today. You can find it here. The book was a slow start for me when I read it last year, but it gradually got better and I ended up enjoying it. Also, you can add the audible edition for an additional $2.99 today.
I didn't realize I was going to find so many sales this morning, or I would have just combined all these posts into one. Too late now, though...
Assassin's Apprentice by Robin Hobb is on sale in the Kindle store for $1.99 at the moment. More details here.
With book 2 in The Reckoners due out tomorrow (Jan 6, 2015), the first book (Steelheart) is on sale in the Kindle store here for $2.99.
In case you missed the sale last month, Words of Radiance by Brandon Sanderson is on sale in the Kindle store again. This time the price is $3.99, and you can get more info here.
The Prince of Thorns, the first book in The Broken Empire series by Mark Lawrence, is on sale in the Kindle store for $1.99. You can find it here.