Guild Wars 2: Heart of Thorns content

Ancient Power Core

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Hero challenge.png

Ancient Power Core

Ancient Power Core.jpg

Decayed Hive
(Tangled Depths)
Hero challenge
Other images

Ancient Power Core map.jpg
Route from the Rata Novus Waypoint

The Ancient Power Core is the base of a large machine found in the abandoned lab from the personal story. The lab can be accessed by swimming from Rata Novus Waypoint. Exalted Markings is required to make it through the underwater tunnel.

Getting there[edit]

Starting from the Rata Novus Waypoint, dive down into the water directly south of the waypoint - a deep shaft will be lined with perimeter defense turrets. Swim down to the bottom, and use the Exalted Beacon (this requires the Exalted Markings mastery) to pick up an Exalted Crystal. The crystal produces light which protects you from the darkness of the depths and the piranhas, it also fears nearby enemies away.

Swim north out of the darkness, then up past the crystal to the surface. Climb the ramp leading out of the pool at the northeastern edge. After emerging from the pool you will find yourself in a room with mossy platforms and a leaning pillar. If you look ahead and upwards you will see the wall of the lab where the Ancient Power Core resides.

Climb up to the platform in the middle of the room, and then jump and glide towards the sloping pillar (the view from the central platform of the pillar is obscured, but glide forwards and left). After landing on the pillar, climb to the top, and circle anti-clockwise around the room by jumping and gliding. At the top of the wall, glide down and commune with the hero challenge in the empty lab.


Heart of Maguuma


The power core has inexplicably kept this facility powered for years.
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Commune with this place of power.
If you have Blademaster's Core, Axemaster's Core, Stavemaster's Core, Mordremoth's Core, Incomplete Catalytic Converter and a Vision Crystal in your inventory.
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Channel the Ancient Power Core to complete the Catalytic Converter. Gives the Catalytic Converter and removes the five constituents from your inventory.
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Leave it alone.
The power core has inexplicably kept this facility powered for years.
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You've learned all you can from this place of power.


  • Reaching this lab in the open world will give the player the Lost Lab Locator achievement for its rediscovery.
  • If you do reach this place in the open world, you can leave without using a waypoint by activating all consoles in the room.