Sanctum: Burning Brambles is a puzzle dungeon in Mistwoods built around the Sealed Aniimo Emberpup's Fire Bolt skill. Here's where to find it, how to solve its puzzle, and where to find its 2 hidden chests.
Where to Find Sanctum: Burning Brambles
Sanctum: Burning Brambles is located southeast in the Mistwoods region, right below the RV Park.

Sanctum: Burning Brambles Objective
The sanctum's objective is to reach its heart and restore the Vein. Beyond that objective, the sanctum also hides 2 chests.

How to Solve the Burning Brambles Puzzle
The sanctum's puzzle is built around the Sealed Aniimo Emberpup's Fire Bolt skill. Fire Bolt shoots a fireball that can burn through the withered brambles blocking your path, clearing the way forward.

Chest Locations in Sanctum: Burning Brambles
- Chest 1: left side after the 2nd Puzzle Ball Socket
Chest 1 is located on the left side after the 2nd Puzzle Ball Socket. Burn the platform the chest sits on to drop it down to a level you can reach.
- Chest 2: unlocked by the 2nd Ball Guiding puzzle
Chest 2 is unlocked by finishing the 2nd Ball Guiding puzzle.
Repair the Vein and Claim Your Reward
Once you've obtained the 2 chests, head to the end of the sanctum and interact with the cube to repair the Vein.

Doing so awards Lumin Amber x1 and Character EXP x500 as your first-clear reward.

How to Find, Unlock, and Clear a Sanctum · Lumin Amber: Location Map, Uses & Branch Rewards · All Guides