Before you start exploring the Cave you need to prepare some Cloaks, Fur Boots and Fur Hats beforehand. At the end of the Cave you will enter the Frozen Lands. If you are not wearing warm Clothes you will freeze to death in no time. The Helm of Light from Silver Seed also count as warm clothes.
Cave
Go to the Boulder in the Cave and then South. Destroy the Trap on the first Chest to get 2 Cloaks. In the other pickable Chest is an Enchant Missiles Scroll. Go North from the Boulder to the Stairs below. There is some Spider Silks around and also Spider. Go down and slay Goblin until you come to Crossing. Go East and destroy the Trap South. Go up the Stairs. Take 3 Heal Potions and 4 Cold Resist Potions along with the 3 Crates. Go up another Stairs. The 2 Crates have some Potions too. Take the 2 Crates and go up one more Stairs. The Crate here has Magic Leggings, Magic Gaunlets and Magic Boots. With this Crate and the other you picked up you need to build a Crate-Ladder to the Stairs to the Roof. At the Roof is a Lich-Statue sitting on Thron and some Bones lying around which comes to Life if you come near it.
Go back to the Crossing and go North, but before going West you need to destroy more Traps to the West. Going South is the longer Way around it with some Bats and Gazers while going West is the Shortcut. So go West then North until you find the Monolith. Don't bother with the Stairs south of Monolith. It only lead to 4 more Stairs which loop around. So take the left Path North. Go down either Stairs at the Ends. Go in the red Moongate which leads to a Tomb with some Brown Tentacle. Get the Key on the Ground and read the Plague. A Ghost will appear and drop a Note at your Foot.
The Ghost is apparently Gannt the Bard and he was killed by Captain Stokes and he want yo to take Revenge on him. The Key on the Ground will open the Door to his House in west of Fawn. Step on the Teleporter nortwest and you're back by the Moongate. Go back to the Monolith and take the right Path North. Go South and South again to the Stairs. The other Paths only leads to 2 Teleporter picked with Caltrops which are visible and some Acid Slugs and the Teleporter are connected together.
This is the last Chance to wear yourself with warm Clothes, since once you go up the Stairs it will begin getting colder. At the end of the Cave lies Fitch a Trapper dying. He tell you of a evil Sorceress who slaughered Trapper and then he died. He have a set Warm Clothes if you need it.
Frozen Land
North of it is a small Cave in which some Snow Bears live. Go North until you meet Bwundai wandering around, then go in Gwani Cave at (23N, 1E) to meet Yenani. In the other Cave at (21N, 9E) lives Myauri and the sick Neyobi. Baiyanda, Mwaerno and Bwundai is at (23N, 14E). The Bag in eastern Room has some Reagents. The Gwani People will tell you what happened with Gwenno and where her Corpse is. You need the Gwani-Horn to visit Death Temple, but someone stole it and took it to Skullcrusher Mountain. Talk with Baiyanda and she want you to save Neyobi. You need to get Ice Dragon Blood from a Ice Dragon. She will give you an empty Bucket. Continue North to meet 2 Hunter (Kapyundi and Gilwoyai). They tell you more on Ice Dragon and also to use another Entrance to Ice Dragon.
The Ice Raft ist at (50N, 3E). Go North to a Big Isle. At the Front Entrace (88N, 19W) is 2 Ice Dragon and in one of the Corpse around is a Magic Leggings or we can also use the Back Entrance at (93N, 11E). Go West, South to a Crossing with a Corpse and Poison Dagger lying around. Both Way have a Teleporter. The East Path send you to a Corridor east of a Corpse with Spiked Shield and Spear lying around. The West Path send you to a West-Chamber with 27 Filari and a Magicians Wand and go in another Chamber with a Magic Bow and Moongate. It will take you back to the Corridor west of the Back Entrance. So we will take the East Path and go West to a Corpse with a Detect Trap Scroll. Go North then East, but dont go far East. Stop when you see the Blue Chest and use the Key of Ice (from Shipwreck) on it to find a Magic Axe. It take you to another South-Chamber. The Corse there has Great Heal Scroll and Cold Strike Scroll. The other Chamber south has Fire Wand, Magic Gauntlets and Magic Helm. The Moongate will send you back to Corpse with Poison Dagger. This time take the Path West of Corpse with Detect Trap Scroll to the North-Chamber. The only noteworthy in it are the Sword of Defense, Rats and Ice Trolls. The Moongate take you back to Corpse with Detect Trap Scroll.
Go North and West to get teleported in another Corridor. Go East and East again will just get you to South-Chamber where you already went so go South of the Crossing. Go East to East-Chamber. This Chamber have nothing of interest, but the other Chamber to the West have some Potion, 12 Burst Arrow, Magic Gauntlets, Magic Boots. The Moongate teleport you back to the Corridor before you went to East-Chamber. Now go west and you will find yourself in yet another Corridor with Two Handed Sword and Bear Skeleton to the West. Go near it and you will be in Middle-Chamber. The only Thing of Interest are the Monster and the Lighting Whip and Magic Axe near the Moongate. You will then be back in Corridor with the Bear Skeleton.
Don't bother with the Northwest Path, since it leads to East-Chamber where you already went and the Southwest Path leads to Bear Skeleton, so we can scratch that too. The Northeast Path lead to Middle-Chamber. So the Southeast Path is the only Path left to take. It take you to another Corridor. Dont take the Southwest as it lead to East-Chamber. The Northwest Path lead finally to the Dragon Chamber with tons of Treasure, but it's also protected by Ice Dragon Babies. There is 202 Gold Coins, 7 Gold Nugget, 10 Gold Bars and a Magic Axe. Going south leads you out of the Cave which are Protected by 2 Dragon or we can go back to the Corridor and take the Northeast Path to get out using the Back Entrance.
Go back to Yenani, using the Ice Raft, and give her the Bucket with Blood. She will thank you for healing Neyobi and tell you the Password for Temple of Chaos. At (2N, 2E) is the Entrance to Skullcrusher Mountains.
Opportunities
Harnna
If you come to Monitor again to buy warm Clothes, you may as well visit Harnna to tell her Cantra died and were taken to the Monk Isle. If you say bye she will tell you another Prophecy that corner the Cold Lands.
House of Wares
The House of Captain Stokes is at (77S, 28E) and with the Key you found by the Tomb you can enter it. Inside is the Captain and a Computer. Click more than once on Computer to listen to advertising for Wing Commander, Ultima 8, Privateer. On Fourth Click the Computer will explode. Kill Captain Stokes for Lighting Whip and Poison Dagger and also for Revenge of Gennt. The Chest upstairs is trapped and locked and have 28 Lockpicks, 99 Filari, 100 Monetari and 100 Guilders.
Trapper Cave
At (10S, 4W) you will find the Trapper Cave filled with some Ghosts. You will find some Gold Coins and Lockpicks around.
Gwani Cave
At (44N, 11E) is another Gwani Cave where Gwani Hunters lives with some Reagents and 7 Lockpicks to grab.
Shipwreck
At (66N, 3E) is a Shipwreck on an Ice Isle. There are 169 Gold Coins, 5 Gold Bar, 5 Gold Nugget, 6 Gems, 3 Jewelry, 38 Reagents, Magic Boots, Magic Helm, Sword of Defense to loot. Be sure to loot the Corpse beforhand before you enter the Ship, since upon entering the Corpses will come to Life and attack you. The 2 Chests are not pickable, so you need to destroy it to get the Treasure within. A Book tell of more Riches which are protected by a Ice Dragon. The Ship's Logbook will tell you what happened on the Ship. There is also a Key of Ice.
Niche
At (82N, 14W) is some Gold Coins, Gems, Reagents, 13 Lucky Arrows and Slippers.
Reclaimed
Magebane
Use the Ice Raft to reach (54N, 32W) where the Magebane Sword is, but once you pick it up the Penguins will attack you. You can also drop the Blue Egg in it's Place.