Here's one that is available today: Surface Tension by Christine Kling.
I found out about this great "steal" in an email from Bookbub.com. It takes less than a minute to sign up and complete a profile - which consists only of checking off your genre reading preferences. Then you receive a daily email announcing the "deal of the day." It's that simple.
Loving it! Check out Bookbub.com to see the other free Kindle books available!