The terrible secret of the mystical Hollow of black bamboo (7 photos)
Although there are fewer and fewer unexplored places on the map, those are available. And they have one thing in common: the inability to explain what is happening there strange phenomena from a scientific point of view. 
One of these places is Heizhu in China - the mystical Valley black bamboo. Sichuan people speak in whispers stories about this valley. Which has an input but no output. 
Old-timers say that for the first time people learned about this place in 40s. A detachment of soldiers numbering 30 people disappeared here. Without a trace. Like two scouts who covered their rear. Last - third was found, but moved by reason and could not tell anything more or less intelligible. 
After 10 years, military topographers disappeared here without a trace. From people remained only ammunition and weapons. In 1962 there was an incident very reminiscent of the story with the soldiers. Returned from a group of geologists only one - the conductor, who hesitated a bit and fell behind. He retained clarity of mind and was able to tell something new. Man described an unexpectedly creeping fog that absorbed not only visual images, but also sounds. And it was almost tangible, viscous, similar to jelly. How long he spent in captivity of a strange fog is unknown. But when woke up, no one from the group was already there.
In 1976, a group decided to shed light on strange events. local. They were experienced foresters and knew firsthand how to lead in the forest and navigate correctly. 
Not everyone returned... And those who escaped again told about the fog. Subsequently, many more entered the Valley and remained there forever. Local cultivated a variety of theories, reaching the point of absurdity: the abduction people by aliens for experiments, tricks of Bigfoot, even stories about a mutant pande that has grown to enormous size and eats the unfortunate. 
As a result, in 1997, the authorities organized an already official expedition to Heizhu. The detachment was led by Yang Wyun. The scientists returned losses, but the next day, many felt ill. Taking into account several already more realistic assumptions were made, explaining the disappearances, namely:
the presence in the valley of special tree species, which, when rotting, release toxic compounds;
sharp climatic fluctuations;
a large number of natural caves, grottoes and crevices that emit toxic fumes. 
At the moment there is no evidence or refutation these hypotheses. And although they look more or less plausible, the question the disappearance of people and the bodies of the dead remains open. 
Safe hiking trails are marked with signs
