Aghoru

Aghoru is a Thousand Sons compliance world in Ultima Segmentum, the dry fifth planet the 28th Expedition catalogued as Twenty-Eight Sixteen. Primitive clans called older builders Elohim and treated an artificial mountain as a spirit-prison.

Magnus lingered to study the Mountain while Russ waited in the Ark Reach. Daemon-ridden revenant Titans and the daemon Choronzon made the diplomacy a battle; Magnus resealed the corrupted webway knot. After Prospero, a martial shard of Magnus raised a colosseum here until hunters stuffed it into Lemuel Gaumon and the fleet burned the surface.

Aghoru still matters as the A Thousand Sons opening map. Unofficial summaries keep the Ultima parent, keep the 28-16 alias, and do not confuse this pin with Prospero or Sortiarius.