Kasagrad was a planet with an advanced satellite defence system. It was the only planet in the Assimilated Territories not conquered by the Fifth Axis due to this.

Sometime before the 4th century BC, a spacecraft crashed on the planet. King Hieronimes' chief engineer Rablev tried to utilise its technology, but caused a radiation leak which killed him. He was sealed in with the ship, and it was believed thereafter that the tomb was cursed. By the 26th century, the radiation had dissipated and the area was safe to explore. (PROSE: The Doomsday Manuscript)

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