Catching Fire (The Second Book of the Hunger Games) by Suzanne Collins
I'm not sure what I can tell you about this book that you haven't already heard, or will soon hear with the movie coming out. It's popular enough that you've probably already heard way too much about it. So I'll just add that I thought the audiobook was nicely done, I liked that this focused more on the political weaving and less on the action, and that this book made my excessive amount of travel in October much nicer.
Waterfall: A Novel (River of Time Series) by Lisa T. Bergren
I got this out of the library because I needed another audiobook and it was available the day before one of my many flights. An archeology/time travel romp seemed like some nice escapism for my own travel. And by and large, it was... Up until halfway through the book when the main character's constant thoughts about God and sudden desire to pray in a meaningful way started to intrude upon my enjoyment of the story and constantly worrying that the whole thing was going to turn into a heavy-handed parable rather destroyed my enjoying of the ending.
To be fair to the author, it never did get *that* heavy-handed, but I felt miffed by the bait-and-switch because rather than letting the character's faith develop in a natural way (as it seemed it might at the beginning), the cases where she thought about God seemed to be less and less connected to what was actually happening to her, and more grafted in to the story as it went on. Not the worst I've ever read, but I certainly wouldn't recommend it, and it's a real shame because it's a nicely acted audiobook and I think with a lighter hand and better editing, it might have worked.