Before you start, you'd better collect 6 Vanya Insignias as you will need them towards the end of this quest. You can get them from various mobs, for example those around the temples.
After this and doing the regular Garden key quest, indeed, you can move on to the Sanctuary quest from the Forrester Cama Path within the garden in Penumbra.
First you get a mission to destroy 7 different machines by using a Calibration Tuner - Set to Wrong Offset (use a screwdriver on a tuner to make it, you can buy both tools from Yuttos in Nascense quickly).
These missions are near the Ravine mostly, but some locations will take you to the Unredeemed Temple on the northeast side of Penumbra.
Once all done, you'll get to the next phase which has 10 steps involving mobs killing :
1. Calun-Cur - Leader outside the Pen Unred Temple*
4. Chimera Cranii - Marked around 2600x884 in pen (East side)
You should find some all around the Ravine East Incarnator.
5. Malah-Ea - Leader! - 1520x1120 in pen (West side)
You can hunt these about Malah-Enimvero dynaboss, at West exit of Hollows.
6. Baran-Kuir - Leader outside the Pen Unred Temple*
7. Eron-Cur - Leader outside the Pen Unred Temple*
8. Patiarch Prophet Nar Van inside the Pen Unred Temple
This kill should have popped Acolyte Cama Hume.
Trade him your 6 insignias, this should summon next mob.
9. Omega Carlos Truhillo
After this one, the final boss should appear in middle of many mobs ; pull wisely !
10. Unredeemed Vanya
When Vanya dies you're rewarded with your key.
*: almost everywhere it says "outside the Pen UnRed Temple" upper, beware the island off to the East of the UnRed temple (the one you access with the lever) also has these mobs for the case you can't find them at their usual spot.
Last updated on 11.20.2018 by bitnykk
Original information provided by the Shadowlands Library Forums, additions information by Windkeeper.
Do you have questions about this article or found an error? 1 comment(s) - Click here to view them!