One of my more enjoyable games when I was beginning with computers. Only playing it made me to start to learn English seriously.
Recently I have finished it following a "walk-through", just to see how the screens are magically created.
There are a lot of information about the game there on the web, how it parses the words, the artificial intelligence engine that makes the characters to have different roles, how the scenes are drawn, etc.
But only partial disassembles where achieved until last year. It happened that a group of fool Spanish owners of Dragon 32 insisted on make a port of the game for that computer. But the processor of the system is a 6809 at 0,89 Mhz, so the conversion needed the total analysis of the Z80 code and then be translated to 6809 mnemonics and architecture.
But that is history, because they achieved successfully the conversion of the game to Dragon 32 and TRS-80(Coco).
Here is the complete Z80 disassembly of the game. I think that it deserves an improved Enterprise version, with music, better screens(MSX ones are the best) and saving position. The only problem is that all the commentaries are in Spanish.