Island of Viscan

The Island of Viscan, is very isolated, with no other land in sight. It is located in a region known for its volcanic activity in the southern part of the Lucidian Ocean.

It has a mountain based cavern that dips deep into the ground in the center of a very thick jungle-like terrain. Portions of this cavern have been ruined and broken down and there was some sort of geothermal activity in the vicinity. There are deep series of winding caverns that lead to a very old stone laboratory.

Forest
The Island has a jungle like forest, with a lot of different trees on the outside, further in there are, trees that have all withered grey and black fronds and branches. These trees look like they had the life force pulled from them, almost like a very rapid starvation, or thirst took them, but a lot of these trees are near-petrified and have been this way for a very long time. The closer the forest gets to the mountain, the more bereft the structure of the trees become.

There are a few patches of 15-foot oval area of hollow earth, which is when subterranean caverns go into collapse. Which is caused by an explosion of magical energy beneath the earth that causes even though there is no space, it erodes the earth from its magic presence, whether it just completely disintegrates or destroys portions of the earth, it leaves this very, very unstable portion of ground.

Mountain
it's a moderate-sized mountain, about 600 feet tall at its apex. The surface and most of the rock follows the familiar pattern of tectonic shift that's broken and cracked in places that, over hundreds and thousands of years, just settled into its natural state.

Mountain Entrance
There is one section of rock just 200 feet from the base where the texture of the natural lines of the rock, is in a different direction. There is a very large heavy rock, 20-30 feet wide, that is jammed into an entranceway. This rock has a number of large holes peppered over the surface. Each one of these holes is a pierced intrusion upon the rock. And they're clustered in places, these claws are respective to the size of a very large dragon, some of them are more weathered than others. This boulder has been placed and pulled back and placed many times throughout the years.

Mountain tunnel
The Tunnel is 15-foot-wide and 12-foot-tall. The rock walls of the pathway are rough, but appear to have been intentionally carved for a purpose. There is a layer of heavy untouched dust across the ground, amongst the dust and pebbles on the floor, there are a number of scattered shards of years old blackened bone across the floor. About 100 feet in, the tunnel begins to curve to the left and descend down.

Eventually, as the grade continues downward, the hallway opens up, and the walls begin having slight shapes or details to them. There are small shelves or alcoves every 20 feet, little bits of rock jutting out, and small little cubbies.

The first small shelf on the right has a number of dust-covered cluster of candles that have long burned and melted into dripping wax that pours down the side of this shelf. On the left there is a shelf with two mostly melted candles and the singular human skull with an undead energy about it. On the opposite side of the tunnel there's a shelf that had a couple of small books that are put off to the side, and what looks like a small wooden box. The next shelf had some sort of a mummified raccoon-type creature that is propped up. After another 50 feet the tunnel opens up into a room.

Hexagonal chamber
In this room there is stonework over the entire floor with a large iron door. The chamber's height is about 25 feet. In the center of this chamber, 15 feet away from where the iron door is, there is a platform about five to six feet up where a dark green marble pillar stands about chest-height. On top of the pillar is a roughly forged bowl of iron that is imperfect and is bolted to the top of this pillar. On the bottom of the bowl there is a very faint residue what was dried a long time ago. Off to the right, there is a shelf that contains a very large leather-bound tome with no text on the spine. When reading the page in the tome the text gets smaller and smaller until it's microscopic. Also on the self there is a cold iron brazier that is unburnt and has a bunch of dried tinder in it.

In each hallway leading to this room there are two skulls, when they are activated they turn in to four cackling floating flame-wreathed skulls that can attack.

Staircase
30 Feet from where the iron door was, a set of stairs are descending for about 20 feet into a hallway that is about 20-foot-wide and 20-foot-tall. The hallway ends after 30 feet where there is a three-foot-wide 100 feet long spiral staircase down, and 25 feet across from the edge there is a gap in the opposite wall.

Five feet above the staircase there is a celling with a glyph on it. Which will activated when someone descend the stairs. At the bottom of the stairs there are a cluster of four-foot-long deep brown or maroon-colored iron spikes that are all jutting upward in slightly off-kilter directions, and there is a heavy pile of splintered bones and long-mummified dead corpses that are currently just piled up at the base of these spikes, some still impaled, many of which have slowly rotted and fallen apart. There is also an archway at the bottom of the stairs that lead into a dark tunnel.

Reversed-gravity bridge trap
The tunnel leading from the staircase is 20 feet wide and 15 feet tall. The walls are chiseled roughly, about 30 feet in it ends at a cross-section of a very deep ravine, both above and below. There is an underground chasm that stretches both to the right and left. On the bottom of the ravine there are nearly skeletal humanoid bodies. The chasm is about 60 feet across to the other side, and there is a taut rope bridge bolted to each side leading across. When walking across this bridge gravity seems to be reversed and undead bodies of humanoid creatures are falling up. On the other side there is another entranceway that leads to another hallway.

Fountain Chamber
50 Feet down in the hallway there is a small fountain built into the center on the ground. This fountain has two bowls above each other the upper bowl smaller than the lower. At the very top there is a humanoid face that's stretched into this ghastly, horrified expression of terror and gasp. From its mouth is pouring a small trickle of water upward, just spilling 15 feet up onto the ceiling, where it's just pooling and separating into cracks. The water is impacting a green emerald-like gem in the ceiling. Covering the gem will reverse the gravity in the ravine.

Hallway
The ceiling of the path begins to grow higher, and the hall begins to widen open, and splits in two directions. Portions of this hallway are still the cavern-type feel, but more sections looks like the walls were carved out at one point stone and had a specific purpose, but over time portions of it have fallen to disuse and ruin. The two paths eventually join again on the other side of the large column. Where the rocky walls become just stone and the hallway opens up to a square-like chamber.

Laboratory
There are two distant cages in the far corners that seem to bear some sort of slumped, unmoving bodies inside them. There are two pillars in the center of the room that appear to be just strewn with carvings and glyphs from top to bottom, surrounding them entirely. There are a series of bookshelves and chains that line the walls.

History

 * In the Age of Arcanum this island was the lair of an ancient necromancer named Opash after he got banished.
 * There Lived an indigenous people on the island, that made seaward trade routes to the north and the west. When Opash made this island his home, the indigenous people were never heard from again. It is believed by many who fare the seas that this land is cursed and is to be avoided for that reason.
 * This island is where Thordak holed up after avoiding death from J'mon Sa Ord in Ank'harel, to rebuild himself and his domain, for an unknown number of years. until about fifteen years before the events in.

 Raishan fled to the Island of Viscan after the death of Thordak.

 With the help of Keyleth, Vox Machina, Kerrek,Lady Kima and Allura Transport via Plants to the island. At the entrance of the mountain used Stone Shape to make a slight opening in to the large heavy rock. Using Kima’s sword as leverage they moved the boulder and set it in place with the rod of immobility.

In the necromancer's sanctum, Keyleth starts a fire in the iron brazier with Flaming Hands which causes an explosion that destroyed the tomb. With the blood of Vex'ahlia and a basilisk put in the bowl the iron door opens and activating the skulls. Percy explodes two skulls with Animus, Vex'ahlia cuts an arrow straight through a skull and causes it to crack in half, and Allura uses Magic Missiles to turn the last skull to ashes.

When transporting people down the staircase the glyph on the ceiling activates, Scanlan use Dispel Magic to dissipate the glyph.

At the gravity chasm Vax'ildan makes it across with whisper, Percy went across the bridge with his Boots of Spider Climbing and the Endless Rope, Allura Dimension Doors across with Kima, and Kerrek and Keyleth make the crossing on the carpet. When Vex’ahlia and Pike attempt to cross the ravine they are hit by falling bodies and fall of the broom and tumble up, there are saved from falling to dead by a Grasping Vine from Keyleth. And with the help of Percy and the carpet they make it safely to the other side of the chasm. Vex goes back across to get Grog and Scanlan on the other side, Grog in the neckless and Scanlan on the back of the broom.

At the fountain Allura asks for a jug and let it sucks up water and essentially covers the gem, after hearing many things falling, cracking, impacting hey come to the conclusion that it reversed the gravity in the ravine.