While one of the passages was too small for Forgath's mighty armored form, the other two could be traversed.  Picking one they went onward and downward, a twisty path going for some modest distance before leading into a second, oblong chamber.  Tiny crystals in blotchy patterns across the wall and ceiling reflected their light and a stale, coppery smell met them as they advanced.  Puffy took a few moments to examine one of the crystal formations, before shrugging and commenting, "Quartz; nothing important."