I'm still not sure if and how to continue this story. I have some ideas, but they don't seem to fit together coherently. So I may just create a new story next time, or whatever. Of course, I don't have a monopoly on this, so if anyone thinks he or she can think of a neat story to tell in this way, perhaps halloween-themed...

Speaking of neat stories, and in case you need to get your interactive fiction-fix (which is how the genre is apparently called nowadays) - there's tons of them out there. They are still very well alive. Try, for instance, this very, very charmingly written example,
called "Violet". If you're lost on how to play it, there's a webbased version
here.
Have fun!