still finding these books so very hard to put down, while remaining completely aware of their problems. this one probably has the most information in terms of what the land, flora, and fauna was like 25,000 years ago, although all of them are full of information that she transmits to the reader in a way that makes you not even realize you're learning. still, this one more than the others seemed longer than it needed to be with some over the top things happen. but i'm still into them and can't wait to keep going.