Dead to the World is the fourth in the Sookie Stackhouse series by Charlaine Harris. It has dropped to $1.99 at Kindle and Kobo US. There was an omnibus of several early titles in this series on sale in the UK a long time ago, so if you travel, check carefully before you buy...
Kindle US:
https://www.amazon.com/Dead-World-So...dp/B000O76OOU/
Kobo US:
https://www.kobo.com/us/en/ebook/dea...ackhouse-novel