My publisher just accepted the third book in the Kevin Markinson Series!
Frostbite, set in Concord, NH, is both a prequel and a sequel, it falls between
Stress Fractures and
Lead Poisoning.
Here's the pitch that sold it: A bumbling gang of mobsters from Rhode Island get more than they bargained for when they kidnap an aging assassin. Kevin Markinson has no interest in killing anyone for anybody, but he decides to go along with them for the time being, while he figures out a way to work this out to his advantage.
Should be out next summer.