Now there's one loaded question, Kinga! (I just love
your puppy picture in your Avatar, by the way....same
empathy for my little dog!)
First off, could you please let us know where you
got this information from in the first pLace?

Are you reading material on the internet or are you
going to sources which can be held to accountability
--such as a well known author, archeologist or
astrotheologist? What are your own roots for your
religious beliefs--because your long-held spiritual
beliefs may influence greatly what you learn next...

That old phrase: "We see what we expect to see" *(that
was used artfully in the movie "The Davinci Code" when
Teabing is trying to get a NEW IDEA ABOUT JESUS in the
Last Supper through to the young Miss Sophie--did you
see this? I loved that scene! (This very real
"BLOCK TO ABSORBING NEW INFORMATION" is formally called "Scatoma")and Scatoma comes into play when attempting to re-think our original Christianity or whatever core religious belief we may have.
Do you realize that it is possible that there IS NO LUCIFER, NO "DEVIL" in the religion of the Anunaki?
What would we do with this concept....NO DEVIL? Wow!
As far as THIS THREAD goes, Kinga...Abhie hasn't given anyone any corroborated evidence that establishes
"AN EVIL/DEMON ENTITY" associated
with the "Engineers." (They look pretty bad-ass by the
script of Ridley Scott's movie...but that scene with
the NASTY ALIEN ENGINEER may or may NOT be drawn from factual material the Scott's would have done!)
These guys were bumping around the planet some 17,000 years ago--or even MORE, Kinga....there are bits and pieces that have come forward about the Anunaki from serious research done by author "Zacharia Sitchin." But say, if you go to your local pastor or priest and ask such a question-you will be met, most likely with BLANK STARES and disinformation!

Ridley Scott doesn't actually go on the record about
the "Engineers" motives or even their own religion
(which of course they hint about in the movie as we
see statues that look like Easter Island or the
likeness of The Buddha in the "Chamber room." They
also have Shaw looking up at something like the "Sistine chapel" in the Chamber room, but we aren't given a clear view of that fresco above her--at least not in the movie
version that I saw...(the Blue-Ray edition has more stuff!)
Are you looking to identify a "Lucifer" character in
"Prometheus?" And, even more importantly...why would
you be expecting this? Lots to consider....hope you find
your way! Try going to: www.sitchin.com for the beginning
info he's uncovered about the Anunaki.
Cheers!
SK