The first hundred pages or so of Back are really, really interesting. The main character comes back from World War II and learns that the girl he loves has died. He thinks that there may be some sort of conspiracy. The reader wonders whether there is really a conspiracy or whether it is all in the main character's mind. I seriously couldn't put it down.
Then the story just kind of slows down and peters out. I won't give anything away but it just...kind of....stopped...holding my attention. It was a good story though, just not as exciting as I thought it would be.