The main story was the hunt for Nessie and it was quite interesting. The Scottish setting on the lake was romantic and I was excited each time Flynn and Gail found a clue that might lead to the truth. Although both characters were working on different sides of the belief in Nessie's existence, they still found themselves liking one another. It was a slow developing relationship, which was realistic and refreshing and it allowed the main focus of the story to be the search for this popular legendary creature. The author added a bit of suspense to the story when one of the characters turns out to have an alternate agenda. It was a nice little twist that just added to the enjoyment of the story.
I also liked that both Flynn and Gail were given baggage. They had both experienced family tragedy and pain and had to confront their fears/grief at some point in the story. This made both characters seem more real in that their lives weren't perfect but they kept moving forward; something we all have to do at some point or another.
Do they find Nessie? Do Flynn and Gail fall in love? You'll have to read the book to find out. In my opinion, It's worth picking up.