|This article contains canon information corresponding to the Tales of Arcadia franchise. That means all information in this article is true and has appeared/been validated officially on-screen.|
- “Heartstone Trollmarket is extraordinary in terms of design. Guillermo, Rodrigo, and team worked long and hard to create the concepts. To this day, Heartstone Trollmarket is one of the most aggressively complex locations we have ever created in CG; just to render a single shot in Trollmarket can take up to six consecutive days on the renderfarm. Probably one of the most impressive things I've seen from Guillermo is his visual language, where you can do something that is so simple, and yet it can speak such large volumes.”
- ―Chad Hammes, Executive Producer[src]
Heartstone Trollmarket (or Trollmarket) was a subterranean metropolis that is the home of Troll civilization, pulsing with energy and jewel-fueled light, where trolls eat, fight, and down brews in pubs straight out of Viking lore. It is located beneath the town of Arcadia, and the entrance (which can only be opened with a Horngazel) is under the main bridge of the canals.
However, as of "The Eternal Knight: Part 2" after Morgana's defeat and ending the Eternal Night, the Heartstone within Trollmarket has lost all of its power and is therefore uninhabitable, forcing the remaining trolls to venture to New Jersey to find a new Heartstone.
They stowed away on a ship called the Mayflower, along with several Gnomes for companionship and nourishment. They finally arrived at what is now New Jersey and after much searching, they managed to find a new Heartstone under Arcadia. Thus, they found their new home that would be known as Heartstone Trollmarket.
After Jim Lake was chosen as the new Trollhunter, the Gumm-Gumm Bular went after him to end his life. So, Blinky and AAARRRGGHH!!! took him and Toby to Trollmarket, being the first humans to step on it. Although all the Trolls were reluctant to them, in the end, both were accepted. Trollmarket is frequently visited by them, mainly in the midst of some Trollhunter crisis.
After Bular's death, Claire Nuñez became the third human to reach Trollmarket. After Angor Rot got a Horngazel, he led an army of Golems to invade Trollmarket. With the union of all the Trolls and allies of Jim, Angor Rot was defeated at the end, at the cost of a life of several Trolls, including AAARRRGGHH!!! (who was revived in Part Two).
After escaping Killhead Bridge, the Troll Tribunal had Jim out on trial for seemingly letting Gunmar out after he went into the Darklands. After Jim is proven guilty, Queen Ursuna was revealed to be behind Gunmar's escape all along and the Gumm-Gumms attacked the metropolis. The Gumm-Gumms started to brainwash Draal and several other trolls to become their slaves. When the Trollhunters managed to get all the remaining trolls to safety, the Gumm-Gumms took over Trollmarket.
In later episodes of Part Three, it is discovered that Merlin has imprisoned Morgana underneath the Heartstone of Trollmarket. Morgana later uses the Heartstone to keep the Eternal Night active and stable. After the Eternal Night War, the Heartstone within Trollmarket has lost its magic and is therefore rendered uninhabitable for Trolls.
After learning that Kanjigar the Courageous is the protector of Gaylen's Core, Toby and AAARRRGGHH!!! lead Aja, Krel, and Varvatos to Heartstone Trollmarket to consult the Soothscryer, with Morando not far behind and several Gumm-Gumm zombies mindlessly attacking them. There, the spirit of Kanjigar leads them to Gaylen's Core inside the Deep. However, Morando managed to narrowly steal the core first.
- “Since Heartstone Trollmarket is set in a dark yet peaceful cave, we took advantage of the crystals and minerals, making them glow and using neon signs to provide the sense of a lively market.”
- ―Alfonso Blaas, Art Director[src]
- “The overall architecture of the Trollmarket is very asymmetrical and scattered, forming plateaus of stacked formations, in contrast with the clean orderly shops on the streets of Arcadia.”
- ―Rustam Hasanov, Art Director[src]
Trollmarket is a great underground metropolis. It is located several meters underground, connected to the entrance by a long bright crystal staircase. It consists mainly of houses, bridges and trading posts arranged around the rock. There are all kinds of minerals and crystals everywhere that provide illumination. In the center is the Heartstone, the source of life and sustenance of all the Trolls.
However, in the aftermath of the Eternal Night War, Trollmarket is now nothing more than a dark, damp, silent, wrecked, and creepy cavern with what's left of the Heartstone at the center.
Points of Interest
The library is Blinky's special room, used by Jim and the group as a barracks. It is full of all kinds of books, scrolls, and texts about magic, spells and troll history, often used in need of information. Most of these books were arranged by Blinky's brother, Dictatious.
The main entrance/exit of Trollmarket. Upon entering with a Horngazel, there is a blue crystal staircase which often magically appears before the visitors and leads to the underground metropolis.
The Gyre station is where they use a special mode of transportation called a Gyre to travel to any part of the world in record time, outside Heartstone Trollmarket's rule boundaries.
Morgana's PrisonUnknown to the trolls of Trollmarket, Morgana's prison was located underneath their own Heartstone, where she remained awake, plotting her revenge to kill Merlin, his Trollhunters, and bring forth the Eternal Night to bring chaos to the world above.
The workshop is a special room located at the foot of the Heartstone, frequently visited by Vendel. It is used to heal the wounded as well as to forge and refine jewels and gemstones to bring out its authentic power.
Killahead Bridge Chamber
After claiming the pieces of the Killahead Bridge and killing Bular, the trolls placed the bridge inside a highly secured chamber only a troll of Trollmarket may access. The pieces were later shipped out of Trollmarket after Usurna destroyed the bridge, preventing Jim from escaping.
Where trolls carve engravings in their stone skin.
The Plaza is one of the major locations in Trollmarket. This is where trolls normally meet for markets, shops, and dwellings. It even has a great view of the Heartstone.
Bagdwella's Fine Gifts
It is a deposit owned by Rot and Gut, who supply the Trolls that go in search of spells, charms, talismans, totems, and diverse magical artifacts.Gaylen's Core from outsiders. Krel goes into the Deep to find Gaylen's Core, but not before facing his own worst fear (losing his new home of Arcadia and his friends he's made there). After Krel finds the entrance to the Gaylen's Core chamber, the defense magic of the Deep has been broken.
Gaylen's Core ChamberAfter King Fialkov and Queen Coranda entrusted Gaylen's Core to Kanjigar, he created a hidden chamber in the Deep to protect it in case House Tarron would ever return. The entrance to the chamber holds a password that is written half in Trollish and the other half in Akiridion: "With valiance and justice, long may House Tarron reign". Once entered, it gives an aura projection showing the battle of Seklos and Gaylen before introduced to Gaylen's Core at the top of a purple crystal mountain.
The Pub is a bar that offers food and drinks service for trolls. It has several tables and bars for customers. It is frequented by all Trollmarket residents and where various meetings are held.
- The crystal cavern Heartstone Trollmarket is located has similar crystals to How to Train Your Dragon: The Hidden World's Hidden world.
- Despite the dead Heartstone, some of the artifacts in Trollmarket are still [partially] active, such as the Horngazel tunnel, the Hero's Forge, and the Soothscryer.
- Jim and Toby are the first humans to ever step foot in Trollmarket.
- Aja, Krel, and Varvatos are the first Akiridions to visit Trollmarket.