This seems to be the oldest non-MiA Spectrum adventure not yet solved (at the time of this comment). Not surprising, because it is quite tricky. Has a segmented design with lots of puzzles, finicky mazes, some very frustrating randomness and well-concealed red herrings, so it's likely to fox most adventurers. But now it is unsolved no more. If you enjoy annoying games, this is a good one to try.
This seems to be the oldest non-MiA Spectrum adventure not yet solved (at the time of this comment). Not surprising, because it is quite tricky. Has a segmented design with lots of puzzles, finicky mazes, some very frustrating randomness and well-concealed red herrings, so it's likely to fox most adventurers. But now it is unsolved no more. If you enjoy annoying games, this is a good one to try.