Wow, I really liked this! It was short, but in a good way. Like you could almost see the parts where the old Peter peeked through and then remembered how messed the world was and went back to homicidal badass. The dichotomy between healer and killer is an interesting one, something that you highlight quite well. Interesting that you wrote from a character's POV who isn't a natural warrior but a made one. The distiction accounts for some of the lines in here that I really liked. (The part about power corrupting and blowing the world sky high and, of course, the end.) This was delicious, sweetie. You captured Peter's character well too, despite (or because of) the circumstances. Lovely!

I read it and wonder if this is what runs through his head as he works himself up to finally offing Nathan. Because otherwise I'd wonder why he got to this point already without teleporting in and killing the guy. It can't be that tough. Nathan can fly and that's it. If Peter really has all those powers, then it shouldn't be that hard to locate Nathan, stop time, teleport to him, grab him, teleport out, and lock him up somewhere. Done. And he's not even dead! Argue with him, torture him, try to persuade him, use telepathy to reprogram him, etc. - at leisure.