Nagash cruelly forced his people to build a black pyramid, where he stored the nine dark books of his Liber Mortis. Followers flocked to him but eight kings of the other Nehekharan cities joined to fight him, led by Prince Lahmizzar of Lahmia. Nagash sent armies of skeletons led by Arkhan the Black against him, a blasphemous crime in Nehekhara. However, the invaders rallied and drove him to the north-east, though they failed to destroy all of his Nine Books. The surviving volumes were taken by Queen Neferata of Lahmia.