I like the begining. I have only read the first two chapters at the moment, but the second one caught my attention. I will be following it. =)
I have one suggestion: try rewrite the prologue, because it lacks fluidity. It almost made me not want to read the first chapter (which I enjoyed quite a lot). Try not telling the entire background. Reveal it as you go. This will keep the readers interested. Perhaps the prologue isn't even necessary.