 By the 13th dynasty, the lack of security meant that locals had usurped the Valley Temple to be used as a granary and the first breach of the pyramid happened at about that time.There is evidence of restoration work perhaps 100 years later, when King Auibre Hor and his princess Nubhetepti-khered were buried in two of the ten shaft tombs on the northern side of the outer enclosure.The Black Pyramid, with all its wide passageways, had multiple structural deficits.