Halcyon Sea

**Halcyon Sea** is the biome of Illuvium that represents all the sea-domains on earth. Unlike the receding growth of corals on earth due to bleaching, however, these corals have grown to become as tall as skyscrapers! Surrounding the flooded lands of Halcyon Sea, a huge wall blocks off the sea from flowing into the basin.

## Illuvium Zero

In Illuvium Zero, you will find that three illuvials will appear most commonly, namely:

Atlas

Alphie

Rypter

## Biotopes

### Takifugu's Dome

When arriving through the obelisk of the region, you see a dome of corals surrounding you. The middle of the Takifugu's Dome lies lower, where the obelisk proudly stands tall. When moving north, after scaling the wall of the crater, you arrive at Halcyon Falls.

### Halcyon Falls

When climbing over the ledges and looking up, you will see gigantic waterfall crashing down on what seems like rice paddies. The Baifan stairs look almost similar to rice paddies except for the color of the fields. The Baifan Stairs consist of pools of water with brightly different colorings. The algae and other organisms in the pools secrete various substances that in most cases are very harmful to other living beings. At the top of the baifan stairs you find the overflowing pool, where the Halcyon falls pour into. You could try jumping into the pool to find out whether its deep and bubbly character houses a living being. You can ascend the Halcyon falls all the way to the top, where you will be able to find serenity in an otherwise loud area. The waterway is layered with thick mist, as the cold atmosphere and the warm water vapor collides.

### Sea of the Ancients

When looking over the Takifugu's dome to the south, Incredibly large corals can be seen. As the Halcyon falls provides a continuous source of water to the region, water makes its way down south towards the Sea of the Ancients. Here, huge coral pillars tower into the sky and create exciting light and shadow play on the ground. In the shallow water on the floor, many organisms survive thanks to the protection of these large coral stuctures.

### Halcyon Sea

To the west of the Takifugu's dome lies the region's namesake, Halcyon Sea. The water in this area is calm and serene, and along with every other region is knee-deep. The corals in this area have overgrown all the large structures. Since they are covered in coral, there is no way to know what these things were. They might be leviathan remains, similar to what you can find in other regions.

### Whaleback Ridge

To the north of the Halcyon sea, the whaleback ridge acts as a wall between it and the Halcyon falls. Stromatolites, made through the accumulation of layers of dead blue green algae act as a natural barrier. Water is sucked up through these layered deposits and pour out as waterfalls, making for an animated area.

### Indigo Crypt

East of the Obelisk is Indigo Crypt, a vast underground maze. The outside looks like a festive giant shell that sparkles in multiple colors. The strange material seems somewhat holographic. Inside the indigo crypt, you can find a deep metallic blue material. The walls and floor are slippery and slimey. The folds in the walls especially look like veins, giving off the sensation of being inside an enormous creature.

### Pango

While inside the maze, you can move into Pango. This is a deep cave where purple crystals light up the space. After moving further into the cave, the darkness becomes more and more prominent.

## Illuvials

Water, Nature and Air illuvials can be found most commonly in this region.