Treasure: 10 Gil, 160 Gil, 180 Gil, 500 Gil, 575 Gil, 1455 Gil, 1455 Gil, 1520 Gil, 2000 Gil, 2750 Gil, 2750 Gil, 5000 Gil, 5454 Gil, 7340 Gil, 7900 Gil, 9500 Gil, 9500 Gil, 9900 Gil, 10000 Gil, 12350 Gil, Cottage x2, Tent, Gold Needle, Flame Sword, Shirt, Ice Armor, Ice Shield, Mythril Gloves, Healing Staff, Ice Brand, Steel Gloves, Gauntlets, Ruby Armlet, Levistone, Rat's Tail
The Ice Cave
Time to head to the Ice Cavern, one of the most dangerous places in this game, so take the time to get any weapons, armour, and magic you missed. When you're ready, jump in your ship and head near the north-eastern edge of the southern continent. There should be a sheltered bay a little to the south of where you are, go to it then enter the river system. Follow the river around and you should be at the Ice Cavern soon. It's up to you, but I would strongly recommend that you use a tent or even better, a cabin before you enter.
Floor 1a
Notice the lively music? It's the same as Mt. Duergar, but it seems weird to me why they would use it in such a deadly area (cave, dungeon, whatever...). The first floor is extremely linear, so you shouldn't have any problem finding the stairs to floor 2, and you can't get through the rubble to the other side of the stairs, so don't bother.
Floor 2a
Yawn. Despite the two different paths, this floor is still very linear because both paths lead to the same place - the stairs at the lower left side of the floor.
Floor 3a
Here's a very tiny room. Just take the stairs up.
Floor 2b
Go down and enter the room at the bottom. The levistone is in this room, but it's unreachable from your current position. Grab both treasures here, but make sure you don't step on any of the cracks. After you've collected the contents, step on any crack on the floor...
Floor 3b
You'll run into the big, bad White Dragon here, but he's really a pushover. They should be able to kill it within one or two rounds. Now on with the show. The area beyond the initial room you drop into is very large, and filled with treasure. There's also enemies of course, but the only ones that you really have to worry about are Sorcerers, Dark Wizards, and White Dragons. Sorcerers and Dark Wizards are the worst of the worst, so either run from them or kill them quickly with your strongest spells.
Now, walk to the left across the spikes, follow the path, and enter the room at the end. Woo hoo, treasure, but there'll be another spiked square in front of the chest containing the cloth (a sort of bad joke from the guys at Square). It's another White Dragon, deal with it the way you did the last time. After you've collected the treasure, backtrack to the door of the first room on this floor, then head all the way down. Go down the left path when you reach the point where the path splits, and grab the treasure in the room at the bottom. Now, go back up and to the right and you'll find the stairs to the next floor.
Floor 1b
Wee, you're back on floor 1, but this time on the other side of the rubble. Time to grab the treasure in each of the rooms, but don't walk onto the crack in the second room until you get all the treasure. When you're ready, step on the crack and break your back... or end up back on floor 2b, where the levistone is.
Floor 2c
You'll be right beside the levistone now, but when you step on the square next to it, you'll run into another enemy.
Evil Eye
The Evil Eye has some pretty nasty spells, mostly of the instant-kill variety. Warriors and Monks should attack. Black Mages and Red Mages should use Fire3 and Bolt3. White Mages should use Dia2 or Cure2 when necessary. It shouldn't last any longer than one round if your levels are high enough. One thing to note about Evil Eye is that it returns even after you kill it - if you step on the tile again you'll start the fight again. This means two things: 1) don't step on it until after you've gotten the levistone, exited the cave, and saved your game, and 2) come back later to beat the crap out of it some more and raise your levels.
Lykion Desert
After you win, you'll be able to take the levistone. Walk around, and you'll probably fall through the floor back to floor 3a. Make your way back to the stairs, and you'll be be back outside.
Now you'll have to put your levistone to work, but where you ask. First, get back to your ship, then take it to the south-eastern edge of the continent, and you should see a river that goes westward. Take your canoe down this river, then turn south, get out and walk west into the Lykion Desert. Use the levistone while standing in the desert and you'll get the (start short fanfare) airship.