This is a very simple Twine story with a smidgin of interaction. Usually this type of thing gets boring, but I found this excellently written, and an interesting story about two brothers. One uses magic, and magic causes pain. The more powerful the magic, the more chance it can kill the wielder.
The story isn't about this specifically, but it shadows the relationship and the obliquely subtle plot. This feels like a tiny fragment of a much larger world, and I enjoyed the little glimpse of it that this story gives. I hope this writer has more to show us because the story is achingly lovely and melancholic.