Labyrinth Chambers
The Labyrinth of Kindo'jan contains 9 Chambers, with rewards increasing as you progress deeper into the run.
Every 3 chambers completed grants two additional Heavy Trunks, one additional Bountiful Coffer, and Great Vault credit, up to 9 chambers completed.
Heavy Trunk Crest rewards are doubled.
Complete at least 3 chambers to unlock the next difficulty tier.
Kindo'jan
Defeating Kindo'jan within a Tier 8 or above Labyrinth will grant you Vault Credit and a Heroic Soul Fragment once per week per character.
Heroic Soul Fragment
Obtained from a delve's Bountiful Coffer. Combine three fragments to obtain a random Hero 2/6 piece of equipment.
Just starting my testing now, but so far feels like a few delves stitched together.
Update 1: After I beat the first area a bird popped up and prompted me to choose the next area. I only had one choice, so I clicked on it and it automatically flew me to the door. After I cleared that second one the bird appeared again and have me two choices, I chose the central chamber and it flew me to that door.
Update 2: You can also ignore the bird and manually walk to whichever door and open it. There is a progression track like delves and prey, but this one only had 5 tiers. Each tier lets you use a new set of seals / doors within the labyrinth, which are like shortcuts I guess? It says "treasure and power await", so maybe it's more like an extra treasure room you can visit once it's unlocked. Each of the 9 'areas' is basically do some objective, then kill a boss. The same theme can be recycled between rooms it seems - two of them had me click on raptor skeletons to find a troll ghost's pet raptor.
Update 3: Well I finished all 9 rooms. Whenever I clear one it says the treasure area grows richer or something, but I'm not sure where the treasure is supposed to be. I could open treasure in Akil'zon's roost, but now the door to it is sealed. Sidenote: Akil'Zon's Roost is very annoying, a lot of traps and obstacles that knock you back, fear you, etc. while you try to click stuff to fill a progress bar.
Update 4: Ah ha, when I told the bird I was ready to leave, it teleported me back to the entrance, which is the treasure room where everything accumulates. It had six Bountiful Heavy Trunks and three Bountiful Coffers. All three Bountiful Coffers contained a Heroic Soul Fragment, even though I ended up doing it on tier 1. When combined they gave me a Hero 2/6 trinket.
