Amazon is also currently still offering Design on a Crime (Deadly Décor Mysteries, Book 1) by Ginny Aiken for FREE right now. I just finished this one this weekend and it was also a really good mystery novel. Kind of Jessica Fletcher style. I definitely recommend it. Prices change quickly, so don't wait around, and make sure it's still $0.00 when you purchase it!
If you don't have a Kindle, you can read it on your PC, iPad, Android, etc... by downloading the FREE Kindle app here.