This was a second chance romance between Jack and Brooke who met as student/TA in college. Brooke returns to college to help her mentor, Mhairi's memoir. She also happens to be Jack's aunt. The story is told when they were in college as well as their hiking trip which Mhairi's memoir focuses on. 

I felt that younger Brooke and Jack were just horny kids and were reckless and knew what the consequences were and Brooke should not have been so angry with Jack. 

I enjoyed their hiking trail interacting with other hikers and the beauty of nature. They didn't learn from their first go and still didn't communicate despite being in close quarters. 

Thank you @canarystreetpress for a copy of the book.