「 This is a treasure 」Field reached his hand forward to take the bottle of oil and carefully observed it before his body slowly rose back up, no longer concerned about the bottle of corpse oil.
「 That is a Mana Source refined from several mages; if used in conjunction with certain rituals, you'd even be able to inherit certain spells from it 」Field slowly explained: 「 As for how to conduct this ritual, you will have to seek for it using your spirit sense 」
After explaining that, Field's body followed the writhing black matter and re-entered the ceiling, disappearing as if he had never existed in the first place.
On the other hand, Roger was exceptionally excited.
Finally, I can obtain supernatural powers of my own. My spirit sense alone is no longer enough to deal with the current situation.