Further to 'burner's' walkthru:
Hajar - don't leave it, in fact make it compulsory. You may or may not kill the Cyclops (the poor guys are bound by the Nameless) but you'll get over a 125 gold just lying around. The there's a shorter enterance to the treasure...go from the West where the pillars curve in...save your game out side the amphitheatre. Then use an Air Invul. Potion. Walk/run to the treasure chest. As you near it it vanishes to reappear to the East, and again it reappears to left of the place you entered, and once again disappears. THE IMPORTANT THING HERE - KEEP YOU FINGER ON ESC ANd SOON AS YOU SEE YOUR LIFE EBBING AWAY - UNDER THE CONSTANT BOMBARDMENT BY LIGHTNING - PRESS ESC AND DRINk A HEALTH POTION, TWO IF NECESSARY. THEN MOVE NORTH TOWARDS THE CENTRE AND THE CHEST WILL REAPPEAR. QUICKLY HIT IT WITH YOUR SWORD, ONE HIT IS USUALLY ENOUGH, AND LO AND BEHOLD YOU GET THE NAMELESS MASTERS' TREASURES...A SHARD OF LIGHTNING, A SLING SHARD, WEALTH AND THE GREATEST TREASURE A PARCHMENT - to be spoken in reverse when you meet last Master.
Then if you are blood-thirsty kill the Cyclops
This'll make it easier in Al'Katraz!
Happy Hunting!