Listened to on Scott Sigler's (free) podcast in audiobook format! 
 Enjoyed this one much better than the first book thankfully. I don't like being left in the dark in books and feeling confused like the first one did with me. This book we learn, evolve, and are challenged in ALL different kinds of ways. Tests of friendship, willpower, survival, and more! Can the birthday children live in this new world they've discovered? 
 That epilogue at the end though...I'm going to need to see what happens in Alone now!