The Akum-Sothos Cluster of the Solar Segmentum was where the Luna Wolves won their dazzling victories in the early days of the Great Crusade.
It was the origin point of many of Horus Lupercal's achievements after he had just been raised to Warmaster. Back then, before the other primarchs had returned, he had already conquered a hundred worlds in this region of space.
The Potsdam System.
It was one of the cluster's navigational hubs, where the Warp routes of six surrounding systems converged.
The flagship of the 5th Legion, the Relic-class warship Starship.
Santiago Bergkamp sat beside the viewing window, sketching a star map on the console he knew so well.
Using pigments mixed from spiritual materials such as Kraken blood, he drew symbol after symbol and marker after marker over the star map provided by the Luna Wolves.
Santiago slowly set down the white Shrike-feather quill from the Ark Fringe Cluster in his hand and gripped both ends of the scroll.
He examined the star map from an Astrologer's perspective, and after confirming there were no mistakes, he rolled up the scroll and slipped it into a tube.
Click!
Runes shone, and a stasis field activated.
A beeping buzz sounded in his comm headset. After Santiago connected, a voice rang out.
"My lord, the Starship's teleportarium is ready."
"I know." Santiago rose and headed toward the teleportarium.
After the first Psyker artisan of the Shadow of Order finished observing and studying aboard the Photep, he personally designed and rebuilt the teleportarium, replacing the teleportation platform once operated by Tech Sergeants.
When designing it, he had not started from the perspective of Psykers. His main consideration had been the Travelers.
The Traveler's Door granted to the Travelers by the Black Emperor was essentially similar to Daemonology Psykers, both accomplishing teleportation