Access to this zone is restricted to those who have completed the quest The Immortal Pest in Forgotten Pools zone and killed "Lord Bob" (the last boss with the name nobody can spell). Completing the quest The Prison That Kraytoc Built in this zone gives access to Hold of Rime: The Fortress Spire. They must all be done in that order to complete the quests in the cave near the entrance to Storm Gorge. They should be duo-able at level 95 with mercs, even if you don't raid. But there are occasionally epics you can aggravate accidentally, so go slowly the first time.
This Zone may have different daily Mission Quests rewarding (White) Primal Velium Shard. Zones like this often have a hidden creature somewhere out of the way which contains a key that unlocks a "Plat chest" that rewards shards, platinum and maybe items. The "find my body" quest, Raise Your Glass, is timed but you may retry it the next time you enter the zone. The body is in the room with Witch Doctor Vuh'Duh.
KNOWN BUG: The Witchdoctor often bugs so that he is not targetable or attackable while he is chasing you around the room with his death ray. If you are duo or in a group, have the healer heal himself and keep him busy while someone gets a merc out. Possibly the merc can target him even if you can't and you can attack him through the merc. Otherwise, you can use an Escape ability or totem and walk back.
Warning: there is ice and you can slide off the platforms. Best is to engage him from the pool in the middle as he will teleport there when he starts using his death ray. The way around the pool will be blocked by huge ice walls.
The information below has been verified with in-game data and the information on this page is correct, even if it looks stupid or makes no sense.Fact: zonename is Hold of Rime: The Ascent