The crystal cavern of the Naica Mine in Chihuahua Mexico
Was discovered in 1902 in an offshoot tunnel .2 miles from the main one
And named Cueva de las Christales

It matched Jules Vernes fantastic descriptions of enormous underground crystals
The ones in Cueva de las Christales reach over 32 feet long and weigh 40 to 50 ton
They are gypsum or calcium sulfate crystals

In the inner earth on the Lidenbrock Sea are 2 huge expansive islands
Called Plutusia and Atvatabar

There is a book called the Goddess of Atvatabar
That tells of the crystalline settlement called the Rainbow City

A courtyard of rainbow crystals
Reflect an assortment of pastel pinks and shades of greens golds and blues

There are multicolored archways corridors and crystal towers
Large cigar shaped craft hover above
These are the same UFOs that have been repeatedly photographed in our skies

Thriving cities unknown to surface dwellers
Exist within the depths of our earth plane
In the land with no horizon
Harboring secrets beyond our wildest dreams

A race of humans called the Old Ones migrated below
Because on the surface one ages very quickly

Another human lineage is called the Elder Race
They stoically and frequently kidnap children in bad situations on the surface
And raise them as their own

A proto human race called the Deros
Have to stay out of the sunlight
They like to eat humans

There are also 30 foot giants
Cities of reptilians
And large dimetrodons with sail like vertebrae that funnel upwards

There are large versions of the 4 to 5 foot long rare rhinoceros iguana
That inhabits the island of Haiti and the Dominican Republic

There are forests of giant mushrooms
And immense spore bearing plants called lycophytes

Large expansive electrical storms can last up to 4 days

During the end times depressurization cycles
Some of these large megafauna will get pulled up onto the surface

In the realm above us
Some will get funneled downwards
And we will have a new world!