"This is..." he picked up a glass vial.
Elias nodded, "This has a significant effect on suppressing the contamination and backlash from other beings. It works quite well."
"That must have cost you a pretty penny," the duke smiled, eyeing the two rows of ten vials in the box. "These suppression vials have suddenly become a hot commodity on the black market, fetching astronomical prices. You have ten vials here; that must have cost a fortune."
Elias shook his head, "It didn't cost me anything."
"Not a dime?" The duke looked puzzled.
Isabella's smile was a bit smug, "Oh, you might not know this, but Elias made these vials! He's really something, huh~"
The duke was even more surprised, looking at Elias, "Really?"
Elias humbly brushed it off, "It's nothing, just a small contribution to the field of mysticism."
"The youth these days are truly remarkable," the duke chuckled, his opinion of Elias visibly improving.