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In the next area, you will find a lot of "oversized maggots". You can (and should) also put up a town portal in this area, just for the case that you die. If you manage to find the right order, a door in the wall behind the devotion shrine will open and you can proceed. The order seems to be same each time: white, yellow, green, blue, purple. If you make an error, they will reset after a few seconds. You have to pull them in the right order. When entering the edge of reality, you'll find yourself in a room with a devotion shrine (which takes a Skeleton Key to restore) and 5 colored levers. When you reach the altar, you can activate it with Chillheart in your inventory (will not be consumed) and proceed to the Edge of Reality. Make your way to the altar in the north east of the basin: Here's a map of the area including these safe spots. There's also some spots which are protected from the storm, where you can regenerate and wait for cooldowns to finish.
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Bring a lot of health potions and some Aether Clusters, use movement skills to traverse the area quickly. Use heal/immunity/mitigation skills or have a lot of life regeneration. Keep fighting with life leech (ADCTH) or defensive skill/devotion proccs. It becomes stronger the further you progress into the area. There's also a sandstorm which constantly deals damage to you. It is filled with hordes of dromedary enemies, so this seems to be Crates interpretation of the cow level. Welcome to a cozy place called the Bonebleach Basin. When you walk over it, a passage opens up next to it:
Now go to the Cairan Docks and find the area with a crate logo on the ground.
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