The land of the shifting sands is the earliest mention of the Black King's neverending game. The Lower Kingdom venerated the Black King as a god. The Scriptures of the Cross and Star have attributed the results of the war to a plague. Such is their right and it is not an entirely inaccurate description.
The details of his reign in the Lower Kingdom are sketchy, at best, as the man that chronicled his finds was often in his cups. Suffice to say, the Black King was... sometimes... sated with a sacrifice. Other times, however... there were many plagues back then that have not since resurfaced.
The Black King fed well during those times.
Later, he returned to the land of the shifting sands. A man named Moses had advised those of true hearts to paint an X on their doors in sheep's blood. What the Scriptures of the Cross and Star do not reveal is that his brother Aaron then went around and added a circle to those markings. Those doors were safe.
The Black King took the children from all other houses, including that of the Pharoah's.
Since then, little has been heard of any activity in the lad of Pharoahs. Perhaps they found a means to fend him off. Perhaps he simply tired of a hunting ground that was so superstitious as to venerate him.