For what it's worth, I wondered the same thing for years. Before I
got nostalgic a year or so ago and started play intellivision again, I
just figured that I was missing something, and that without that
missing weapon or spell, you couldn't win . However, when I started
poking around the web, I realized that there were several people with
the same problem. Everyone tried the destroy walls spell to get to the
dragon, but when they did...nothing! I wrote to the Blue Sky Rangers
and they said they would try and contact the Imagic author, but I
believe (this was a year ago) they e-mailed me back and said there was
no luck. I hope it helps knowing there are several other frustrated
S&S players out there.
Kevin