+> lock chain
+
+It was already locked.
+
+> attack bear
+
+The bear is confused; he only wants to be your friend.
+
+> unlock chain
+
+The chain is now unlocked.
+
+> take bear
+
+OK
+
+> inven
+
+You are currently holding the following:
+Set of keys
+Brass lantern
+Egg-sized emerald
+Glistening pearl
+
+You are being followed by a very large, tame bear.
+
+> take chain
+
+OK
+
+> out
+
+You are being followed by a very large, tame bear.
+
+You're in front of Barren Room.
+
+> lock chain
+
+There is nothing here to which the chain can be locked.
+
+> drop bear
+
+OK
+
+> attack bear
+
+The bear is confused; he only wants to be your friend.
+
+> back
+
+You're in Barren Room.
+
+There is a little axe here.
+
+> lock chain
+
+The chain is now locked.
+
+> out
+
+You're in front of Barren Room.
+
+There is a contented-looking bear wandering about nearby.
+
+> drop keys
+
+OK
+
+> in
+
+You're in Barren Room.
+
+There is a golden chain locked to the wall!
+
+There is a little axe here.
+
+> unlock chain
+
+You have no keys!
+
+> out
+
+You're in front of Barren Room.
+
+There are some keys on the ground here.
+
+There is a contented-looking bear wandering about nearby.
+
+> fork
+
+The path forks here. The left fork leads northeast. A dull rumbling
+seems to get louder in that direction. The right fork leads southeast
+down a gentle slope. The main corridor enters from the west.
+
+> go left
+
+The walls are quite warm here. From the north can be heard a steady
+roar, so loud that the entire cave seems to be trembling. Another
+passage leads south, and a low crawl goes east.
+
+> north
+
+You are on the edge of a breath-taking view. Far below you is an
+active volcano, from which great gouts of molten lava come surging
+out, cascading back down into the depths. The glowing rock fills the
+farthest reaches of the cavern with a blood-red glare, giving every-
+thing an eerie, macabre appearance. The air is filled with flickering
+sparks of ash and a heavy smell of brimstone. The walls are hot to
+the touch, and the thundering of the volcano drowns out all other
+sounds. Embedded in the jagged roof far overhead are myriad twisted
+formations composed of pure white alabaster, which scatter the murky
+light into sinister apparitions upon the walls. To one side is a deep
+gorge, filled with a bizarre chaos of tortured rock which seems to
+have been crafted by the devil himself. An immense river of fire
+crashes out from the depths of the volcano, burns its way through the
+gorge, and plummets into a bottomless pit far off to your left. To
+the right, an immense geyser of blistering steam erupts continuously
+from a barren island in the center of a sulfurous lake, which bubbles
+ominously. The far right wall is aflame with an incandescence of its
+own, which lends an additional infernal splendor to the already
+hellish scene. A dark, foreboding passage exits to the south.
+
+> extinguish volcano
+
+It is beyond your power to do that.
+
+> s
+
+You're at junction with warm walls.
+
+> n
+
+You're at breath-taking view.
+
+> jump