Several of these giants were kept inside glass capsules, in a "deathlike" state (similar to death); But they were not dead.
At the time of its disappearance, this civilization possessed technological capacities that far surpass ours. The stasis chambers were a testament to their progress, employing glass technology that supposedly altered the flow of time. It could be 30,000 years, but for the occupants of the glass capsule, it seemed only about thirty minutes. This ancient technology is even beyond what even most believe. It is multidimensional technology, coveted not only by humans but also by extraterrestrials.
The underground cavern was no secret to Goode, who claims to have worked for the shadow government. In fact, it was discovered sometime during the 19th century. This place was covered with dark material up to about 90 feet. And there was an old unknown language that surrounded the interior. There were also three sarcophagi that were in a formation on the floor. "
Among the three sarcophagi was a cube-shaped pedestal with "a matrix of bright blue glass with a kind of spider web connecting the four corners."