I have to admit, the two page prologue and the last little bit of the end of chapter 5 are what have me hooked and intrigued. I have always wanted to go to Paris and see the catacombs, and one of my favorite horror movies is The Descent - so this book seems like it is going to be right up my alley. Unfortunately for me, most of this 50 page preview was all set up -- but now that they've made it to the catacombs, I cannot wait to see what comes next!