Review: A good start and a decent finish
Rating: 3 out of 5
Date: 02 4, 2013
Overall, I enjoyed the book, but I had to push myself through the middle part.The storyline is not extremely original, i.e., a wormhole -in a mine- hence the title, that happens to show up on the day the main character is exploring it, and transports him to just before world-war II, but the main character is very well done and the first third of the book proceeds at a solid clip so that it is hard to put it down.The middle third of the book slows down and spends most of its energy exploring the moral dilemma of going after someone else's girlfriend, when that someone is about to go to war, and does a somewhat middling job at it.  Not much science fiction there.Things pick back up toward the last fourth of the book, and while the ending is not too surprising if you picked on the few clues left here and there, it does tie things up pretty well.As a whole, this is still worth the read.