Stay Away From That City ... They Call It Cheyenne - Code of the West, #4

Just when Pepper thought life settled down to a normal pace, she had to prepare for a rocky ride, now that she was hitched to the unpredictable Tap Andrews. Married life isn't turning out quite the way they planned. The ranch is gone. They've moved to Cheyenne. And Pepper has been feeling rather poorly. But at least Tap has found a job as deputy marshal that takes what he's got: integrity, nerves of steel, and a fast draw.
Then Tap suddenly is appointed acting marshal in a town that has little regard for the law. He soon discovers how hard it is to simultaneously hold off a vigilante crowd hungry for a lynching, control a wayward deputy who thinks he should be in charge, keep his pretty wife from worrying herself sicker, and uncover who's behind the trouble in Cheyenne. When the city council relieves Tap of his duties and Pepper of her worries, it's time to move on.
But Tap can't let things go.