~~ Record the route from the catacombs start to the Slimy Key.
~~ Walkthrough hint: straight, right, left, keep right hand rule, ramp down to pillars,
~~ go left/south, more ramps down, then right at next intersection to the key.

NAV: nav0 once ~~ {
	~~ Replace placeholder points with a recorded route.
	pnt 0.0 0.0 0.0
~~ }