Bramblewood Forest

Gatshadow Mountain was located in the Cliffkeep Mountains, Tal'Dorei, northwest of Westruun.

Gatshadow Mountain was an enormous, ominous mountain in Tal'Dorei at the southeastern tip of the Cliffkeep Mountains, just northwest of the Bramblewood Forest and Westruun. It got its name because it was dark and ominous with a dark, blackened rock peak that stood out amongst the rest of the mountains. While other mountains crest at 4,000 feet up, this one was over a mile high. Gatshadow's peak was nearly always obscured by storm clouds or mist. Most of the trees were dead or dried out towards the top, but other than that the vegetation was pretty sparse.[1]

The actual stone that comprised this monstrous formation was of a darker, more dense stone and it was considered to be the finest stone for crafting on the Tal'Dorei continent, hence why many crafters and smiths made the dangerous journey there to quarry the rock—and not all return.[2]

"Many around Westruun call it The Cursed Mountain. They say madness lies deep beneath the rock. A power that draws all manner of vile things to it".



Around the big cavern entrance there are clumps of dead, petrified trees. Leafless, gnarled, and devoid of any life on top off melted stone and soot.[4] The entrance is just an opening on the side of the mountain with no walkable path up to it. 60 feet below is a smaller entrance with a 40 foot scalable wall leading towards it at an upward angle.[5]

Around the exterior of the entrance, there are two rocks embedded in each side of the cavern wall, about three to four foot in diameter that are nearly identical. Their texture and their weathered appearance is far younger than the rest of the stone around them.[6]

Small EntranceEdit

This hole continued for 15 feet into the mountain before it ended abruptly by a cave in.[7] A layer of dust sits on everything and other than the occasional gust of wind that finds its way in here, it is largely undisturbed for a long period of time.[8]


Gatshadow Mountain3

Screenshot of the cavern within Gatshadow Mountain.[art 1]

In the cavern there are pieces of stone jutting out of the floor, two pools of somewhat greenish-brackish pungent-smelling acid.[9] Next to one of the pools there is an elevated platform where a large outcropping of stone has just slowly pulled itself out of the rock, nearly touching the very height of this cavern.[10] The ceiling is 70 feet high with a few stalactites points of rock throughout this cavern.[11]

There are portion of the mineral growth, and a lot of the moisture that have coalesced into the ceiling come into a central point, and over time, it has built up central columns of rock and natural materials. A few pools gathered towards the base. Portions of the ground have elements of the acrid liquid that filled the pool. The mineral build-up of the inside of this cavern leads to a direct, slick surface in the walls, and rounded off most of the stone.[12]


Age of ArcanumEdit

Gatshadow mountain was transformed in an evil place. As Acek Orattim[13], a priest of the Betrayer God the Chained Oblivion, made it his seat of power. The power of the Oblivion’s corrupted the mountain range to making this peak a jagged needle that towers over the rest of the mountains. After the banishing of the Chained Oblivion it was said that Acek’s mind and spirit were so filled with his masters essence that his body tore to asunder. Which left an empty maze of deadly chambers and traps behind beneath the mountain, forgotten and awaiting rediscovery.[13]

Before the StreamEdit

There was an expedition to reach the peak of Gatshadow, because there was some sort of movement, some sort of activity up there that nobody could really discern. The rumors spoke of some sort of creature that would stalk out in the night and steal mountain goats, or find and kill anybody who lived in the small village north on the mountainscape that was abandoned because of this creature the folklore of the time said supposedly lived at the top of the mountain.[14] They found their way up to the small entrance, made their camp with a small fire but couldn't escape.[8]

"Critical Role: Vox Machina Origins Volume 2"Edit

Vox Machina journeyed to Gatshadow early in their adventures, delving into the mountain itself:

"Weeks pass, and Grog the barbarian hasn't been seen since suddenly leaving for the city of Westruun. Heading there in search of him, the party meets his childhood friend—and their new companion—, the gnome cleric Pike. Grog apparently hasn't been acting normally and had marched off on his own through the Bramblewood towards the ominous mountain, Gatshadow. The party followed, dispensing with a troop of roadside thieves along the way, and wound their way toward the mountain. Deep within, they encountered an abandoned subterranean city and eventually a crypt housing a mind-controlled Grog, the reanimated corpse of his father, Strongjaw, and a dying mage attempting a ritual to lichdom. Our heroes slayed the mage, but not before he could complete the ritual and embed his phylactery into Grog's chest."

–excerpt from "The Story of Vox Machina" (Sx06)[15]

"The Family Business" (1x47)Edit

Umbrasyl made his lair in the mountain after the Chroma Conclave's attack on Emon.

"Umbrasyl" (1x55)Edit

After the Chroma Conclave attacked Emon, the ancient black dragon Umbrasyl roosted in a cave at Gatshadow's peak, receiving tribute from Westruun. Several scouting parties from the Herd of Storms were sent to Gatshadow in preparation for an attack on Umbrasyl, but they didn't return.[citation needed] Later, Shale and some other warriors from the herd scaled Gatshadow. Shale's age and disabilities slowed her down, so she survived Umbrasyl's slaughter of her party by a twist of fate, then descended from the mountain in time to meet Vox Machina.

Scaling the mountain, Vox Machina and Shale, discovered a small entrance with four long-dead skeleton corpses. There were remnants of a small camp that was long iced-over through winters past. There were roughly 85 gold pieces among their corpses and spare change in silver and copper; an oil lantern; climbing gear for four people; some long-spoiled rations; and a very moldy diary. They ascended Gatshadow further and slew Umbrasyl in his cave.[16]

References Edit

  1. See "Umbrasyl" (1x55) at 1:19:09.
  2. Some of the information on this page was imported from Matthew Mercer's Vox Machina Wiki article, "Gatshadow".
  3. See Critical Role: Vox Machina Origins, Volume #2, Issue #2, pp. 3.
  4. See "Umbrasyl" (1x55) at 1:46:57.
  5. See "Umbrasyl" (1x55) at 1:49:58.
  6. See "Umbrasyl" (1x55) at 2:12:56.
  7. See "Umbrasyl" (1x55) at 2:02:13.
  8. See "Umbrasyl" (1x55) at 1:59:13.
  9. See "Umbrasyl" (1x55) at 1:57:53.
  10. See "Umbrasyl" (1x55) at 1:56:16.
  11. See "Umbrasyl" (1x55) at 2:20:26.
  12. See "Umbrasyl" (1x55) at 2:23:27.
  13. 13.0 13.1 See Critical Role: Tal'Dorei Campaign Setting, pp. 63–64.
  14. See "Umbrasyl" (1x55) from 2:00:46 through 2:01:59.
  15. See "The Story of Vox Machina" (Sx06) from 0:50 through 1:41.
  16. See "Umbrasyl" (1x55) at 3:55:37.


  1. Screenshot of the cavern within Gatshadow Mountain.  "Umbrasyl" (1x55) at 2:44:35
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