Ding!
[Host has detected an ancient power connected to one's ancestral roots, Innate Hell Power is awakening]
Ding!
[Innate Hell Power is awakened: forcefully learning Darkness Sutra.]
Ding!
[Host is bounded by the System, cannot learn external forces.]
____
When Grevlin grew conscious enough to hear those words, he found himself in a red space with a black book hovering before him. It had the very same characters shown on the manuscript Seth had taken out, but from a glance, he could tell that this was more complex and powerful.
Buzz! It made a droning noise as powerful red energies rippled from it, seeping into Grevlin's hovering body. Still, as if it was continuously being repelled by something, it couldn't fully integrate with Grevlin's body.
As a result, it felt as if countless critters were trying to eat him from the inside out, causing him to cry out in pain,
"Ahhhhh! Mother! Father! Help meeee!"