As the name implied, Blackstone Fortresses were fundamentally composed of Blackstone, a material capable of manipulating Warp energy. Lox had once traveled through the wilderness of the eastern galaxy precisely to find traces of this incredible substance.
Even after stripping Pandora bare, the Blackstone material Lox found amounted to less than one percent of what the Blackstone Fortress contained. This million-ton void construct held an astronomical quantity of Blackstone.
Now, as the Blackstone Fortress feared Horus's arrival and launched its counterattack, it amplified its ability to strengthen the Warp to the utmost limit. The power of the veil within this star system was continuously weakened, allowing aetheric energy to seep in with ease.
Visible Warp rifts appeared in space. Terrifying malice flowed from these scars upon the universe, and entities from The Empyrean discovered this potential passage.
Yet the Blackstone Fortress's instinctive counterattack failed to achieve its intended effect. At some point, Horus had vanished from the deck of his flagship. The Wolf Lord stood between his warship and the Blackstone Fortress's wave of attacks.
That psychic beam, capable of piercing a star, could have utterly destroyed the Vengeful Spirit. Ship and crew alike would have been reduced to ashes, yet Horus had forcibly blocked the Blackstone Fortress's attack through his own power alone.
Hundreds of sensors on Kebohar's body detected the strength of that psychic tidal wave. As a weapon of the ancient Aeldari, the Blackstone Fortress possessed power beyond anything humanity could currently imagine.
"Horus... Warmaster... god."
The Fabricator-General muttered to himself. His suspicions had been confirmed—Horus was no longer human.
This had surpassed humanity's limits. If anyone could withstand the Blackstone Fortress's full-force strike and still claim to be human, then he had to be an outright liar.
Horus floated in the void with his head held