This is the start of a new mystery series and looks interesting. Hardcover is published by Bloomsbury, a NY publisher and this is a freebie to get folks interesting. It looks intriguing and I like the premise, and you can't beat the price.
For some reason the Kindle cover looks different, but it's the same book. There are a lot of freebies for the Kindle these days, and readers should take advantage of the publishers' generosity.