
Guide 05 · 1 min read
Hollow Sanctum
Learning goal
The dungeon beneath the Highlands and its guardian, without big spoilers.
Step 01
Souls open the way
Soul Catchers in the Sanctum gather the souls of astral creatures that die nearby. Full catchers open the sealed doors.

Step 02
The guardians
Sentinels, guards, crawlers and remnants defend the halls. Every one of them telegraphs its attacks; learn the signs and the fights become fair.
Step 03
The Colossus
Fill the Boss Soul Catcher to wake the Astral Colossus. Its armour is the real obstacle; find out how to break it, and keep a Seal Fragment ready.
Good to know
- Rushing into a room before the guardians have shown their attacks.
Questions about this guide
- How do I open the sealed doors?
- Fill the Soul Catchers: they gather the souls of astral creatures that die nearby, and full catchers open the seals.
- How do I summon the Astral Colossus?
- Fill the Boss Soul Catcher at the bottom of the Sanctum to wake it.
In the Archive
StructureHollow SanctumAn ancient dungeon beneath the Highlands. Its constructs teach you the signals you will need against the Astral Colossus.
BossAstral ColossusThe ancient red-black stone guardian at the heart of the Hollow Sanctum, assembled from floating segments around a glowing core.
MechanicSoul CatcherA device that catches the souls of astral creatures that die nearby.