Originally Posted by rockersuke
Yep, It's that rare. It wasn't distributed commercially as it was given for free on entering some adventure club (which I guess you were a member of!). Text adventure collectors, amiga or not, are willing to pay a lot
for a copy. What "a lot" exactly means is variable. I've seen it go both for more than 300 and less than 50 GBP at ebay depending on demmand.
It's the one item I lack in my collection to have a whole set of magnetic scrolls interactive fiction works! (so right now I'm green with envy
I was member of said club
British adventure club (Official Secrets.)
You may know this already but just incase follow link