For some reason, your description reminds me of that cave where the Millenium Falcon hid in the one Star Wars movie, the cave that turned out to be the mouth of a giant space worm......
Query? Are you saying that Ewyn remembers his name now?
Also, Ewyn wants to study the triangles in each of the tunnels, to see if there some sort of pattern that he can discern. Do I need to roll anything? (will post in the IC thread once I know how to respond to Fidoric's question)