why were the mutants after him? To find a cure or what? Shit I miss to much by not paying attention. Though I did like this ending better than the one in the movie!
The mutants were after him 1) Because they are vampires, so they want blood 2) Because he stole a female vampire who was obviously somehow connected to one of the male vampires. Either family or partner, don't know for sure. It was this same mutant who created the trap (then appears with the dogs), organizes the attack on the pier, and eventually smashes the glass in the lab.
I enjoyed the movie. I haven't browsed the book so I cannot base my opinion off of it. I do wish he was the only one involved as far as the story goes.