Writing this was a strange experience. I started with a simple idea and a short series of puzzles, and everything just kept falling away - locations, the status line, the command prompt, the puzzles and the ending - until suddenly it was two parts long, and strangely fluid. Looking back I'm not too happy with the writing and I don't know that I'd ever bury myself in such a mess of code again. But I'm glad I did it, if only just the once.