SO beautiful! I love how you didn't 'show' us the letter right away, but just fragments from Lois remembering--or trying not to remember it. Are there enough clues yet for her to put it all together?
It's interesting in this story how creepy Superman has become--because now it's revealed through the letter that he would kill Lois if Clark told her the truth?! Did I understand that right? And yet, Lois still pretty much sees him as the hero--or does she? She is starting to wonder... I was almost expecting her to notice something from the kiss---because she has had a Superman kiss at this point, before Nightfall... anyway, can't wait for more! As I've said before, I love your poetical style. You are good at metaphors and reworking images to be fresh, immediate, and meaningful. LOVE THIS STORY!