In 1990 after an order from the General Staff of the Bulgarian Army excavation started in the village of Tsarichina.
The place of the excavation became a secret military location.
In 1992 Colonel Kanev from the Bulgarian Army gave an interview on national television about the expedition.
https://youtu.be/b07jsr9rUbI
In his book, The Tsarichina Phenomenon, Colonel Tzvetko Kanev, who took part in the research, reveals to the public that at a depth of five and a half meters the team came across a rectangular stone, which was defined to be a biological protection slab by the remote viewer Eli Loginova. Dangerous to human life bacteria were engraved on it and its destruction was risky. Going into the spiral layers lost in depth, the military encountered another barier – a slab in the shape of a concave lens. To its right a wall was discernible whose constituent parts formed a humanoid figure of a height dwarfing that of a human. According to another military man, who wished to remain anonymous, during the removal of the slab ‘made of unknown metal’ the researchers were hit by a beam of powerful light. After recovering from the shock, they found themselves in front of a tunnel about one and a half meters high with a silvery-grey floor and extremely smooth walls covered with unknown script. Colonel Kanev claims that one of his colleagues tried on three occasions to pass the threshold between the so called X Zone and Y Zone, but was invariably thrown back and fell down as if crashing into an invisible wall. Fear of the unknown and the indescribable dangers and mysteries hidden in the tunnel cooled down the enthusiasm of the military and brought about the burial of this enigma after two years of efforts.
