Stratics map
http://uo.stratics.com/database/view.php?db_content=atlas&id=2432
UOguide article
http://www.uoguide.com/Prism_of_Light
Quick area guide:
Prism is broken into separate caverns. Each has a floor tile exit that brings you to the next area.
1) Mines. No aggressive mobs, just run to the north end of the tunnel and solve the electric shock floor/maze thingy by stepping onto the tile with the sizzling electric arc. Repeatedly. Until the arc doesn't move to a new spot anymore. It will reset after a few minutes though, so you might have to solve it again after a while if you use the ticket to make a quick escape.
2) Crystal daemon area. Kill and collect scattered crystals. Straightforward kills. Exit at the north east end of this cavern.
3) Crystal hydra/crystal serpent area. Kill and collect shattered crystals from hydra. Kill and collect crushed crystals from serpents. Be careful of the hydra, their breath weapon scales with their HP like dragons, it is deadly when the hydra is at full HP. Stealthers beware of acidic floor tiles, very high chances of revealing you. Exit at the south west corner.
4) Ice elemental/crystal vortex area. Ice elemental radiate cold and damage you, which will make them aggro you. Kill the vortexes for jagged crystals. Exit at north east.
5) Crystal Lattice Seeker area. Kill them for pieces of crystal. 2 exits. South east one leads to the a small camp/settlement safe area. A +1 arcane circle is at the camp. South west is where the exit to the frozen mummy area is. It's inside the crystal hut thingy (opening to the hut is at the south side of the structure), so you have to go around the hut to enter it and see the exit to the frozen mummy area.
6) Frozen mummy area. Kill for broken crystals. The 6 pillars at the center of this room is where you use the keys. Use the keys in this order, clockwise from the one at the 12 o'clock position, crushed/pieces/shattered/jagged/scattered/broken.
Notes: All the 6 crystal keys have to be looted off slain mobs. And some drop infrequently, esp the ones from the sea serpent, hydra and vortex.
This is the toughest peerless to do in terms of getting keys and beating the boss. The other peerless either have easier bosses or keys are easier to get.
Always be careful of being ganked by the mobs. Small enclosed spaces where you run into mobs no matter which direction you go really doesn't help matters. Good thing you can hotkey the ticket to exit if you have UOA/EC.
There's a NPC healer in the safe area/settlement if you get killed.
Peerless room has an ankh you can use to rez as well.
