The Devil's Ambush — Peter Brandvold

LOU PROPHET AND LOUISA BONAVENTURE RIDE AGAIN!

Lou Prophet and his sometime-sidekick, sometime-lover Louisa Bonaventure are lured to an old, abandoned cavalry outpost in southeast Colorado, and ambushed. Louisa is badly wounded. While the Vengeance Queen teeters on the edge of death, Prophet hunts the seven nightriders who tried to kick them both out with a cold shovel. So doing, he runs into a town teeming with scandalous secrets and seven devils who must pay for their sins in blood….