From publisher blurb: A mysterious Warp Tunnel has opened up into an ancient Forebear ruin. What lies beyond the gate? Danger and treasure! "Down the Tubes" is a one-sheet adventure for Heroes of Terra, suitable for a Novice party, either as a one-shot or as a continuation of ["The Plumber's Dilemma."] Also included is the one-page mini-supplement "Magic of the Terminus," which includes a preview of the magic items and relics of the world of Terra!