A little far fetched but not a bad read overall. For me it started out a bit slow, took a little time to get into it but I still give it 4 stars. If you don't mind reads that are a bit hokey and far fetched, then it should be right up your alley. The book covers a 40 hour timeline. It all takes place inside the catacombs under Paris, hence the name. The main thing it did for me was peak my interest in learning more about the catacombs. It is something I am not really familiar with. Good action at the end made up for a bit of a bland start!