The Valley has been fit for life for seven years now, but people still don't settle this close to the burial ground. It's nasty there: your head hurts, the air is heavy, makes you want to leave. And nobody knows why this is so, as they do not know why the Sepulchre suddenly stopped poisoning the lands around it with its invisible poison.
So the fortress stood on the hill forgotten by everyone, until a couple of teenagers settled there, and it was fine for them. Apparently, radiation does not affect children as much. Or it affects them differently... Having settled here, the brothers quickly built a gang of crazed orphans, and began to attack the surrounding villages and caravans. And they were getting farther from the center of the Valley and they were saving up their arms and strength, and they took the treasures to the fortress, where no one could get them.At first, they got away with it, until they started a real carnage in a village not far from the Central. As if demons got to them, they spared no one...
And then Engineers could no longer take it, they signed a truce with other gangs to punish the common enemy. The Weatherman himself headed a detachment of sixty cars. They could not come close, but artillery worked well, and soon just a few walls were left of the fortress. And everyone who ran, was caught and executed on the spot. Only the brothers were not found, they say, they retreated to the Sepulchre.
Since then, attention to the fortress has increased, everyone is looking for treasures left by the brothers. Especially recently, when everyone's heads stopped hurting at its outskirts. But there is nothing there, apparently the brothers took their treasures with them to the otherworld.