Rolling Thunder, by Chris Grabenstein is $1.99 today only. It's the 6th book in the John Ceepak Mysteries. I got the notice from Open Road Media's Early Bird Books email, so the price is good for today only, but should be good at most major retailers.
Here's the link for Amazon:
https://www.amazon.com/Rolling-Thund...dp/B007RJ9J1S/
Description:
There’s more fireworks down the Jersey Shore in Chris Grabenstein’s sixth fast-paced John Ceepak mystery.
A prominent citizen suffers a heart attack on the opening day of a brand-new boardwalk roller coaster in the seedy seaside resort town Sea Haven, New Jersey. Initially ruled a tragic accident, it isn’t long before there are suspicious hints of foul play—especially after the corpse of a stunning young beach beauty is discovered.
Fortunately for mystery lovers, the straight-arrow cop John Ceepak and his wisecracking young partner Danny Boyle are on the case, a detective/sidekick duo critics have compared to Rex Stout’s Nero Wolfe and Archie Goodwin.
The first book in the series, Tilt-a-Whirl, seems to be permanently set at $0.99.
https://www.amazon.com/Tilt-Whirl-Jo...dp/B004QO9YI0/
I've read the series, and enjoyed them very much.