Arcadia Oaks-pedia
Arcadia Oaks-pedia
Essentially, the Darklands are the original home world of the trolls, one that has decayed and died, thanks to Gunmar's corruption. There's nothing in the story that suggests this; however, we did add visual cues throughout to create this impression. The rock structures are a combination of giant stone buildings and bones of the troll giants that created them. Most of these towers and labyrinth tunnels are overwhelmed by volcanic rock that is no doubt the result of the earth's core penetrating the ecosystem of the Darklands, further destabilizing it.
―Rustam Hasanov, Art Director[src]

The Darklands was a dark realm which was the Trolls' original homeworld before the infamous War for the Surface Lands and Gunmar's birth. Since then, it is now a desolate, dying labyrinth with vicious bloodthirsty monsters inhabiting it. The only known way to enter/exit the realm completely is through the Killahead Bridge. The Fetches also act as portals, but only for small things like small Changelings, Goblins, Gnomes, and human babies.

This was where Gunmar and his army of Gumm-Gumms had all been exiled and imprisoned for centuries after the Battle of Killahead Bridge by Deya the Deliverer, until about nine centuries later when Team Trollhunters staged a rescue mission to save Jim Lake Jr., inadvertently freeing Gunmar in the last second.

It was destroyed once and for all after the defeats of Morgana and Gunmar.



Originally, before they discovered the surface lands, the Darklands was the Trolls' homeworld where they thrived peacefully, unaware of humankind above.

However, when the human and troll worlds collide, they've fought for control for the surface lands as their own. As the result of the bloodshed of the conflicted worlds, the first Heartstone (which is likely the Darklands' Heartstone) rotten from within. From it, Gunmar the Black was born.

Gradually, Gunmar took control of the Trolls' homeworld, corrupting it while the Earth's mantle causes the entire realm to wither and decay, thus turning it into the bleak, dark realm it is today.


When we first conceived the Darklands, we wanted to represent the deepest, darkest cave possible, using labyrinths created by highly reflective rocks such as obsidian, using the natural low [light] emissions of the depths.
―Alfonso Blaas, Art Director[src]

The Darklands consists of a series of maze-like tunnels and caves and-true to their name, are perpetually dark. Vicious monsters stalk the caverns and attack everything they see. It is an incredibly extensive realm, one can wander inside for weeks if you are not familiar with the environment.

Points of Interest[]

Known Locations

Changeling Nursery[]


The Darklands' Nursery is a place where human children Familiars are kept and cared for so it's possible for the Changelings to maintain their human appearances in the real world. Changelings can change for as long as their Familiars are unharmed, so they are looked after and guarded by Goblins. They also don't grow old while they're there, thus becoming immortal.

As of "The Eternal Knight: Part 2", NotEnrique and Gnome Chompsky were tasked to travel to the Nursery and save all of the familiars before the Darklands was destroyed from the brewing war. They've managed to successfully save the babies by using a special Cardlestone created by Merlin, and the last of the Changelings in the human world become trapped in their troll forms forever.

They are kept in stone cradles, marked by plates with their names and, sometimes, year of their birth. The known children that stay here are:

Gunmar's Throne Room[]

This is an area occupied by Gunmar and his Gumm-Gumm Army. Its main space is the throne room, a large space with a throne at the end of a long staircase, where Gunmar is positioned. It has several tunnels and pits that house several beasts and monsters.

According to Welcome to the Darklands, the throne is actually carved from a dying Heartstone, which is why he’s always empowered by it, but given its dying status, it’s only temporary and he’ll later be weakened again.


The Darklands' jail is where captives of Gunmar are imprisoned. It consists of several rocky cells that keep prisoners trapped with crystal doors, causing shocks to those who touch the crystals. Jim, Nomura, and eventually Toby and Claire, all ended upheld here.

Jim's Hideout[]

Jim in his hideout

During his two weeks venturing in the Darklands alone, Jim found himself a temporary hideout to keep himself hidden from the Gumm-Gumms and other monsters. There, he created a map of the dark realm's endless labyrinth while tracking for any signs of the Nursery. He's also drawn a portrait of his friends, Claire, Toby, Blinky, and AAARRRGGHH!!! to give himself some "company". To keep himself nourished, he made a fire-pit with a bowl to make a stove and boil his Nyalagroth eggs.

However, when Jim was discovered by Dictatious and several Blood Goblins, he abandons this hideout and tries to wipe off his draws, but to no avail.

Madness Canyon[]

Madness Canyon was a location mentioned in the book, Welcome to the Darklands. It was the location in which Skarlagk's Rebel Base was felled. It's described as a labyrinth. Jim claims that the Killahead Bridge is present in the maze.

Nyarlagroth Caves[]

Skarlagk's Rebel Base[]

The Black Lake[]

Known Inhabitants[]


Appearances in the Trilogy


Part One[]

Part Two[]

Part Three[]


Part One[]


Limited Series[]


  • According to The Art of Trollhunters, the Darklands is actually the trolls' original homeworld, but due to Gunmar's corruption, it gradually decayed and died. Its ecosystem was further damaged when magma from the Earth's core breached it. Additionally, it is located deep deep within the Earth.
    • Despite being another dimension, it was shown to be affected by the quakes caused by the manifestation of the Eternal Night.


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