Before Time began, a great mountain of Truth called the Spike sat in the center of the world. During the God Wars a chaos army invaded the Spike and their profanity caused it to explode, sending pieces of truestone hurtling through the cosmos. One huge chunk bounced off the sky and hurtled to earth. It landed in Prax where the Storm Bull was wrestling the Devil. The huge rock smashed into the Devil, smearing him across the plain and removing him from his body.
The rock, now called the Block, still sits in Prax, a half-kilometer on each side and two km tall, flanked by hills of dirt. Beneath are the Devil’s remains, eroding under the ministrations of the Good River.
The Block, the world’s largest piece of truestone, is rarely mined. The stone is nearly unbreakable. Only adamant, a mythic metal of forged truestone, can cut raw truestone. Any tool made of truestone is a god-treasure, unknown to men.
Further, the Block is a Storm Bull holy place, guarded by his worshippers. They believe that removing any truestone aids the Devil. They prevent mining and patrol to keep anyone from searching the hills to find impact fragments of truestone. They sometimes will trade truestone they have confiscated from others.