Not bad. The intro definately sets the tone. My main concern is your use of language. It's not poor in any sense - unvaried would be the best way to put it. Even for the time period, it seems too formal, almost stuffy. Bad acting in a play, sort of. But the action itself is really scintilating. Keep at it!

o. What a dark start...totally sets the mood for the rest of the story, eh?

I can't quite see how the prologue is part of the plot (unless that person is Eli..?) but it's really too soon to tell, I guess.

Don't be afraid to mix up the types of sentences that you use. I hate to sound like an English teacher, but don't use lots and lots of passive sentences! It can get tedious.

But this is hardly tedious! It's wonderful, and I can hardly wait to read MORE!!

Good luck with the rest of your dark tale. :)