Inside the cave in the Himalayan Mountains, a professor of archeology and his students found a very extensive collection of more than 12.000-year-old stone disks. These disks were left behind by creatures whose skeletal remains measured 120 centimeters. Each disk is approximately 30,48 cm in diameter. There are two fine spirals on the surface of the disk that run from the edge toward the center.

The caves where the Dropa Stones (stone disks) were found were covered with reliefs depicting the Sun, Moon, and stars, along with other small points that connect on Earth. (That an attempt would be made to illustrate where the aliens came from?)

716 stone discs that have been found have something to do with Greek disks from Faist. These are made up of a series of glyphs arranged in a spiral. Pictograms on stone discs are so small that magnifying glass is needed for their investigation. Unfortunately, some of the discs are already subject to erosion. In view of these facts and our unknown language, we still do not have a translation available.

The controversy over the unknown glyphs on the discs and the discrepancy between the various researchers who tried to decipher the texts led skeptics to reject all credible evidence and possible theories about the origin, nature, and possible translation.

The discs lay unnoticed in the warehouse for about 20 years before falling into the hands of Tsum Um Nui, who began studying them in 1958. It was he who came to the conclusion that the individual grooves contain small hieroglyphs that have no parallel in anything we know.

In 1962, the Chinese scientist Tsum Um Nui allegedly managed to decipher the text. The text tells a story about a spaceship that made an emergency landing in the cave area (Baya Har Shan area). There were people from Dropa aboard the ship. These people failed to repair the damaged ship, so they had to adapt to life on Earth. Another TUN research found that Dropa people were persecuted and killed by local Han tribes throughout their stay. Tsum Un Nui directly points out that one part of the report says: Dropa descended from the clouds in his plane. Our men, women and children hid in caves for ten sunrises (for ten nights). When we finally understood Drop's sign language, we realized that they were coming in peace.

Tsum Um Nui stated that in 1962 he published his notes in a professional journal. His work was subsequently ridiculed and met with great distrust. TUN then emigrated to Japan, where he soon died.