I'd like to note that the tunnels were always intended to be a player-directed plot, or at least that's the vibe I'd gotten from what little information I'd been able to gather from Masa's notes. It only proceeds when you guys tell us you're ready for the next door to unlock. Only one person has made contact with us as far as I'm aware regarding the tunnels, and that's been Sapph, and only fairly recently.

As far as the methods are concerned, please just make sure one of you contacts me, and we'll discuss and work out what'll be found.