A demon? So if all these things have come from fiction - who actually belongs on this Earth in this universe, 2013? Any of us? SHIELD?
What is the second F? I'm sorry she's not here. But she must be very powerful, then, if such magic is rare. We don't have magic in my world, or at least none that cannot be explained by science.
Luckily, Shepard was unconscious for most of the process, to my knowledge. And it was a laboratory over several months, rather than a coffin. I was not there for it. But your ordeal sounds extremely traumatic.