The Last Hotel Room, which was published last September after getting enough support on Kindle Scout to win a contract with Kindle Press.
I have big hopes for this sale. Kindle Press did a similar promotion for my book for all of February and my ranking leaped up to 10,000 for much of the time, and even reached 6,000 for a few days. Here's hoping I'll top that this time.
There are plenty of other great books in this sale, a total of 215! You can see the entire list here.