So what happens when two men decide to use a hike on the Appalachian Trail to work out their individual problems, only to find that they have a spark between them that will either destroy them or make them whole again? 
 I was totally enthralled by this book within in the first few pages. Even though I haven't had the opportunity to read the first three books in this series, I jumped right into this one and finished it in a few hours, just because it was that engaging. 
 I love a story that relies on the two main characters talking to each other rather than having tons of external conflicts. In this story, Megan Erickson does a fabulous job showing how Levi and Thad's relationship grows from a simple night watching the moon together to something much more. The setting provides enough conflict to keep it interesting, as did their limited communications with their loved ones back home. 
 Levi is trying to get over the loss of his sister, while Thad's reasons for hiking the trail are released to the reader more slowly. But I've got to say, it's Levi who made this book sing for me, and I could so relate to Thad's feelings for Levi as the story progresses. For me, that makes this a five-star read -- the emotions got to me early and went deep. 
 I thought this worked very well as a standalone, although the epilogue had some characters I hadn't met yet, I didn't really mind that. I got what I needed from the overall scene and it was just a lovely way to end Levi's and Thad's story. 
 So, loved, loved, loved this. It was just the right size story for the circumstances and I am definitely going back and reading books 1-3.