Fire Stone starts up and right from Rocco's Corner about 15'. You must scramble up a little chimney to reach the face which is just right of an obvious easy crack climb called Super Doo (5.2). Climb up past first bolt through a nicely featured face. To get to the second bolt, which is quite a ways away, move up and delicately step left just below the bolt. You would hit the deck if you slipped off here. Move up to the obvious left facing flake/corner. This protects well to it's top. A thin step left off the flake onto the face is the crux with one or two thin moves up to the anchors. This is a great, fun route with two cruxes, the delicate move left before the second bolt and stepping off the flake at the top although the first is more heady than difficult.