I was going to schedule this when I got back from BGG, but Johann beat me to it and I was out of town last week. I really want to play this, so I am scheduling another game.
This is Small World with both the basic game and the Underworld game combined. I would prefer players who have played either game at least once.
More details available on BGG: http://boardgamegeek.com/boardgameexpansion/109632/small-world-tunnels