This is very similar relationship vibe as in the first of the series. Two people are kind of thrown together and annoy each other, but at the same time have incredible sex. The amount of back and forth between Caroline and Guthrie was a little exhausting at times, particularly from her. The premise was that Caroline, a prim schoolteacher, wanted Guthrie, a miner and raider, to break her fiancé, Seaton, out of jail. She believes that Seaton is innocent of the stagecoach robbery and murder even though he was convicted.
I found this part to be a little bizarre because how naive can you be? She is a schoolteacher and has a reputation to protect. Even if he was innocent, jail breaking is a serious crime. Apparently, she did not know this, as we see when she is in fact, thrown in jail.
Guthrie promised that he would think about it her proposition after he talked to Seaton. However, he then determined that he was guilty and would not participate in Caroline's scheme. That did not stop her though. She brings a gun to jail which Seaton uses to hold her hostage until he could be released. In about 5 minutes, she sees Seaton's true character and now wants to recapture him. Unfortunately, she is now in jail, much to her disbelief. Not only was she surprised, but she was indignant. Caroline was a real piece of work.
I always like forced proximity/on the road romances because we get to see how the togetherness brings two people together who might not have been. I liked how they would argue a bit, but then get themselves all worked up in a state of passion. Even though both of them were betrothed to others, they could quickly see how right they were for each other.
One complaint was the subplot of finding her sisters that she last saw on the orphan train. I did not like it in the first book either. It just seemed like an unnecessary plot device. This author writes an interesting story most of the time, but is not my favorite.