Crucible

Crucible was a rich Imperial mining world close to the Great Rift, whose population extracted precious minerals and worked promethium refineries. Early in the forty-second millennium it was conquered by the Emperor’s Children under the daemon primarch Fulgrim and Knight-Commander Marduk Tamaris.

After the fall Fulgrim was declared king of Crucible and Tamaris its overseer. No segmentum, sector, system or coordinates are recorded.