I kind of thought it was a bit-anticlimatic, but still done fairly well. The best part is probably how everything was building up so well. I expected it to be the work of aliens, but I guess with the prescence of Darnell at the end, it was unexpected. For the record, this book is 30 pages long, so it's not that long of a read. What I didn't like was that some of the text was too small to read. I tried zooming in to get a better look, but then the resolution got lower.
Not one of the best out there, but still nicely done because everything was presented in an organized manner. The best part is probably the drawings. The best of that would probably be the dead cows in the rain. You did kind of get the feeling that you could get into these character's heads. Too bad I don't even know where the Newgrounds store is.