add radiant blood quest and bella recovery

af/nav_radiantblood_key.af

@@ -0,0 +1,8 @@
+~~ 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
+~~ }