Sorry for the late review- I've had a busy week.
You've delivered yet another great installment that was well worth the wait. I especially liked the part where Foliano, Velotus, and Kabutops were guarding the "prisoners"- it really got in depth with their respective personalities. The cliffhanger ending was a nice touch, but don't do it too often, as it may make your more impatient readers (such as myself) annoyed. I initially worried that Carrie might be too much of a Mary Sue character, seeing as she seems to be based so heavily around yourself, but you've made her quite believable personality wise.
One thing that sort of bothers me though, is the lack of Sinnoh Pokemon. I'm sort of a stickler about "Generation Representation", as I call it, and I couldn't help notice that although there are plenty of 4th gen moves, there are no 4th gen Pokemon to be found.
my first assumption is that you were one of those people who greatly dislike the 4th gen Pokemon, but looking at your sprite thread (which is awesome, by the way) I saw several 4th gen Pokemon as part of some of the hybrids. so this is still a mystery to me.
Now I can't wait for Chapter 5- hope you can get it done soon!
P.S.- There's something I forgot to mention in my first review. although Raticate is pretty shweet, it's still got too much ugliness to compare with the pwnsomeness of Rattata.
Oneshots and perhaps fanfics coming soon.
In the meantime, want your fic reviewed? Send me a PM asking! I'll see if I can make time.
(Keep in mind I'm not usually partial to really dark fics, so I may take longer to get to those.)