Location: Max sw from Dunland troll forest, open ancientslab (30 str needed), s is it's area.
Strategy: Leave your mounts 2n 3w 4s 3e from entrance - you will arrive here on way back (don't leave inside ancientslab because someone in group can die, and thus leave you without possibility to open slab again). From behind ancientslab go e s 2e. From there you must go one-by-one: leader 2d s w open crack w open algae w get key pile e u w, others just 2d s 2w u w (solo - just because you can fail swim while following leader and be lost in the underwater). Kill shade, unlock/open granite and go w.
There starts noflee area. Tons exits lead to the Deep Chasm, where you get mudlled 50 to 400 damage, and land (you or your corpse) w from Unqalome. The damage you get from fall depends on which room you fall. Deeper in the zone you are, less damage you get for fall (as you are slowly descending when going deeper). Damage also probably depends on your weight. So better to set wimpy low (like 30-50), and have aliases to rescue casters and cure buffers. Kill spirits, 3w s w kill spiders and get webbing (it can contain silvery elven bracelet btw). Go e n e, “tie web” and “throw web” (“toss web”). After that all rest (or unfollow leader), and go s on webbing one-by-one. If you don't toss web, or try walk here all together, you will fall to room w Unqalome and get like 150 damage.
After you successfully regroup on the other side of chasm, go s w s 3w open mossdoor w. You can kill spirits by the way, or just spam by (same strategy - noflee, rescue and nuke). Kill funguses, get small steel key from corpse. Go 3e s w - second bracelet can load here. Key is for slab 2e d from you.
Down from slab is oneway to Grey Spider area. There starts slippery rooms - if you fall, type “exits” and go to room where group is (where room is lit). I suppose it is whitie group you are going in (thus having light) - *expirienced* darkies should do Unqa without this file :P You can't slip into chasm, btw. Spider doesn't sit in one room, but wanders around, so beware. Kill mobs all here: spider can load bracelet, and any random mob can load fragile stone key for stonedoor. Go 2e s 3e, open crack n d n 2w s w - one more bracelet loads here. And at last, e u w d e is room where you meet Unqalome for the first time.
Target gloom, buffers buff, casters nuke and disengage after each Unqa spell - as when you fight dragon. Use fireballs of colour sprays - Unqa is eff vs both, fballs do more damage, but it's less chance that spray gets interrupted by Unqa's freeze area attack (because spray is faster). Don't use lightning for sure - it reflects half the damage. After it goes below hurt, it flees through locked stonedoor down (you can't prevent it) and makes door frozen shut. Cast some fireballs or burning hands on it (like 500 fire damage needed), unlock/ open it and go down.
There are few rooms where Unqalome tries to hide behind animated undeads. No dts, no slipping, just few passages and 3 rooms with 3 uruks + 1-2 shadows in each. Don't enter non-locked door: Unqa is there inside! Enter 2 others and kill shadows there: you will fight there later, so less mobs - less parrysplit. Though, you can't destroy non-animated uruks :( Then only go for next Unqalome fight. Try wait when shadow goes out and enter after that. Bracelets can load on these shadows too.
In the most deeper room shackles can trap you and prevent from leaving (which means mobdeath of course). Ones who get trapped just go out (if non-engaged) after Unqa flees or before buffer flees (sometimes 8 attempts needed). Buffer hits Unqa, basher spams bash dis 1./2./3.uruks, casters nuke Unqa. If 3 warriors in group - third assists buffer, if 4 - no spam bash dis, just every warrior takes his uruk, and buffer buffs gloom. After gloom flees again, fball door (like 80 fire damage), all flee (uruks can be killed later after gloom dies, they are no longer bound to their room when gloom is dead so u can take them 1 by 1) and go for next portion: it chooses random room where uruks are still not animated. Same strategy. In last room Unqalome will fight to death; rings and one rock loads in it, gems in corpses of uruks, other rocks just lie on the ground in uruk rooms (if loaded).
It is also wise to let someone scout the room before charging with whole group, as it takes some time till uruks are summoned by gloom, and gloom can use room attack and engage all buffers before uruks get summoned. If you let anyone scout, Unqalome will summon them right away. Also it is good to be very careful when scouting, because zone can pop when you are in and you might mobdie locked in room with gloom. Another bad thing that can happen is this: you enter room, gloom engages you, but since it is low it instaflees, freezes the door and you mobdie to uruks, unless some friend fireballs door from outside. So better always scout these rooms with friend ready to pick/fireball door from outside.
If you are fast and don't let Unqalome regen, it usually instaflees after second attack (actually 3rd attack if you count the very first encounter with gloom).
Way back from stonedoor: w u 2e s u 2w n u 3e s d 2e open fracturedfloor d. Same idea: if you slip, stand and go to group. Just remember - the more you carry, the more you slip. To get out pull lever and quickly swim e 2d 2w u (while irongrid is up) - and you arrive in room with your horses.
All area is noport; all d from underwater also nonarrate.
Level: legend defencive buffer in shining (or 2 metals buffers) plus 1-2 legend casters, at least one of them must be mage with fireball or burn.
Loads: Icy ring, banded (+10 ob/-10db, or any two of 3ob/3db/+10 attack/ -10ssave) ring, up to 3 twisted rocks, diamonds/emeralds, grey fluid-sack (if loads), up to 6 silvery bracelets. Bracelets can be used to pass statues in OiE forge, for non-noldor. Rumours about save vs shackles are groundless. Btw, do not wear them on both wrists (othervise they explode immediately).
P.S. Credits to Duke for sending me most features of this place :)
Mobs unique to the zone: