I've got a new setting this week, based on an old MUD quest of mine, or at
least the very start of it. I'm still learning how to code NPCs and the current
Inform 7 documentation is limited (seems to have lost a whole chapter on the
subject!) so I've gone for the one thing I can just about do: conversation.
Talk to the key NPC using "say" or "ask benjamin about". It is possible to say
things out of order and finish the game early, but if following clues you
should end up in the right position at the end of the conversation. Or 
restart talking and try again! Need to code something to stop that too ...

The game can be finished in under 15 moves, e.g.:

n
n
n
e
n
say hello
examine benjamin
ask benjamin about inn
ask benjamin about life
ask benjamin about sea
ask benjamin about treasure
say yes
say in

Need to add more depth to the game world though, including more scenery.
At the moment it is a little bit bare. And some descriptions are _very_ long!