Hypogeum

The Hypogeum of Epirus was a subterranean temple, one of the numerous hypogea, constructed by the Black Dragon Society in 250 BC, while under the rulership of Pyrrhus of Epirus. While serving as mercenaries in his army, the Black Dragon successfully subdued Sparta, slaughtering half of the population, and bringing half of all Spartan men to Epirus as slaves. The Black Dragon used the men to construct a massive temple complex underneath the mountains, out of solid stone. The specifications of the complex were dictated by Heilong Yu, from within the Axe of Heilong, which was in the possession of the Bruttii high priest, ''Mamercus. ''

The Hypogeum was described as being identical to many of the same subterranean temples created by Heilong Yu in Ancient China, appearing as if a pre-Shang Chinese structure placed suddenly in southeastern Europe.

The Hypogeum appeared to be used as a location to store artifacts that were deemed sacred to the Heilongs. Examples of such items were the Bi of the Heilongs, the Owls of Yu that had survived the trip to Crimea, Heilong Yu's imperial robes, the sarcophagus of Yu, in which it was said her charred corpse still was present, and the Axe of Heilong. Individuals were often captured and sacrificed to Yu, something that was easily done given the closeness of the structure to the uncivilized region of Dacia.

As the Black Dragon Cult began to increase in popularity in Greece, Roman officials began to investigate mysterious disappearances of citizens in the Balkans. The result was the Empire becoming aware of the purpose of the Hypogeum and the cult within it. The Romans quickly drove the Black Dragon out of its territory and into Dacia. Following this, the structure was abandoned until the rise of the Black Empire almost 7 centuries later. The Hypogeum was reopened for its intended purpose, becoming a temple dedicated to worship of Dyrantis, who had proclaimed himself to be the successor to Yu. When the Black Empire fell, the Hypogeum was once again vandalized by the liberated Greeks and Albanians, who sealed the 'Church of Satan'. It was not until 1902 that the structure was reopened, to the surprise of modern archeologists.