The Lost Sea!  In Tennessee!  Got me on that one…  But notice of course all the man-made lighting there, while we still wonder what is lighting up the joint they are in… And all the years of Caving have brought Carina to the conclusion that they are up against a sheer cliff wall…

Surely this lake isn’t surrounded by walls… says mark… well, it probably is, and stop calling me Shirley…

For once Gabe is keeping his pie-hole shut… that’s a relief!