Eren resumed reading further into Edgar's journal.
"Heh! This House of Samael was made up of a bunch of visionary rankers. Research into mutagens seems to drive it a great deal. It looks like they were preparing to create a dummy mutagen that in itself did not hold any bloodline-related innate spell.
The document I have with me conjectures that the Samaels were aiming to create a blank mutagen. Something that would act as the master key to unlock the pre-established spells obtained by other bloodlines.
Documents also state that the house of Samael did not announce whether their research was successful or not. The documents also speculate that it was a failure.
Still, that was a pretty ambitious project. The sheer efforts they must have taken along with the number of human experiments they must have performed might have made them evil in normal rankers' eyes.
If only… if only I could get my hands on some of their research documents! What a day it would be."