T he vaulted basement had been dug during the centuries of nomadic infiltration from the north, when the Bayring Horde had overrun most of the Plains and desert, looting and vandalizing all villages that lay in their path. The Memorabilia, the abbey’s small patrimony of knowledge out of the past, had been walled up in underground vaults to protect the priceless writings from both nomads and soi-disant crusaders of the schismatic Orders, founded to fight the hordes, but turned to random pillaging and sectarian strife. Neither the nomads nor the Military Order of San Pancratz would have valued the abbey’s books, but the nomads would have destroyed them for the joy of destruction and the military knightsfriars would have burned many of them as "heretical" according to the theology of Vissarion, their Antipope.