Gaar

Gaar the Conqueror was the king of an unnamed Thurian nation before the time of Kull. He crossed the River Stagus and rode into World's End with his army for some unexplained purpose, perhaps in search of new lands to conquer. According to Karon, who had ferried them across the river, the sounds of battle could be heard coming from that region for an entire day, but when night fell and the moon rose, there was nothing but silence. Neither Gaar nor any of his men ever returned.