Hollow Earth

"*There are these massive underground spaces isolated from the surface world. Passageways. Randa believed this island may be one of those.*"
―Houston Brooks[src]
The **Hollow Earth**, or the **lost world**, is a primordial subterranean ecosystem that exists deep within the Earth, close to the planet's core. It is also confirmed that the center of gravity is located in the Earth's mantle and the core acts as a sun. The ecosystem continually radiates radioactive energy, allowing the floras and faunas that inhabit it to evolve to titanic sizes.

A human civilization known as Agartha once flourished but were destroyed following the Great MUTO War. They rebuilt their empire as the New Agarthan Empire. As much of the Hollow Earth is highly irradiated, humans can only live in certain regions, making the empire the only advanced civilization in the Hollow Earth.

## History

### Legends

Stories of a world underneath the Earth had existed ever since the dawn of human writing.

### First expedition and Godzilla vs. Kong

In 2023, Godzilla looks for an entrance to the Hollow Earth and eventually made his way to the one on Skull Island. Monarch and Anderson-Maeda Enterprises were looking to explore the Hollow Earth and planned to go in with Godzilla and Kong. After a fight, Godzilla enters the hole, followed by Kong and Monarch/Anderson-Maeda, they travel through a series of caves until reaching the Hollow Earth. Godzilla would eventually enter the realm to bathe in a lake of

In there, they noted the many unidentified species native to the Hollow Earth and is even attacked by a couple of parasitic MUTOs whom Kong defeated. They continue to travel until arriving to Agartha and Kongs' lair, where he picked up an axe to fight Godzilla. When Kong finally finds Godzilla bathing in an atomic lake, they fight once more until making their way out of the Hollow Earth through the ground.

The Anderson-Maeda team also examine the aether, a natural element abundant in the surface of the Hollow Earth. Their research was cut short as they were began to be attacked by rock critters and ahools, and are forced to return to the HEAVs and reunite with Kong, getting out of the Hollow Earth from the entrance leading to the Mojave Desert.

Later on Kong settles in the Hollow Earth and Monarch establishes the Hollow Earth Research Center.

## Geography

Majority of the regions in the Hollow Earth is highly irradiated, causing many lifeforms to grow immense sizes and humans unable to live in such conditions. The Hollow Earth is also abundant in a rare element Anderson-Maeda calls the "aether".

* Earth's core: The Hollow Earth is supplied with its own sun through an artificial core created by the pantheons.
* Jotunheimra and Elysia, the two continents.

### Radiation expanse

Covering most of the Hollow Earth surface, creatures and plants grow to titanic sizes. This is the native birthplace of many MUTOs.

* Atomic lakes
* Dark Habitat
* Ginnungagap rainforest
* Monster Island
* Storm Valley
* Temple of Godzilla

### Safe zone

The safe zone is a relatively stable and habitable environment suitable for human presence, where the radiation has subsided entirely, creating a whole new world to explore.

* Agartha
* Argonym rainforest
* New Agarthan Empire
* Kongs' lair

## Biodiversity

### Flora

* Jamfruits
* Merisages
* Ponatas

### Fauna

* Ahools
* *Compsognathus*
* Dark peafowls
* Dazzling deers
* Gryphons
* Holy tigers
* Jackalopes
* Kitsunes
* Rock critters
* Skullcrawlers
* Temple monkeys

#### MUTOs

* Dragons
* Celestial moths
* Gojiras
* Kong giants
* Parasitic MUTOs
* Tepeyollotls
* Titanfrogs

## Trivia

* This MonsterVerse's Hollow Earth is much different from the real MonsterVerse Hollow Earth, seeing as the light source comes from the core of the Earth as opposed to the core of the Earth itself being the ecosystem.
* A day in the Hollow Earth is 22 hours.

## External links

* Hollow Earth on Gojipedia
* Hollow Earth on Wikipedia