Deep under a quiet valley in southern Greece, archaeologists are struggling to unravel a 1,400-year-old tragedy that wiped out a rural Byzantine community. Sometime in the late sixth century AD, a group of at least 33 young men, women, and children sought sanctuary from an unknown terror in a sprawling subterranean network of caves in the eastern Peloponnese. Carrying supplies of food and water, oil lamps, a large Christian cross and their small savings, the refugees apparently hunkered down to wait out the threat. But experts believe the sanctuary became a tomb once supplies ran out.
Whole article from eKathimerini.