The black-robed old man's expression gradually softened and he replied in a cold tone, "Burton, we're here to buy some potion materials this time."
"Potion materials?"
Wizard Burton showed a smile, then said, "Hill, what potion materials do you need? I'll check if I have the things you need since I've collected quite a lot of potion materials during these few years."
The black-robed old man gave it some thoughts and replied, "I need Purple Stone Powder."
Merlin also said to Wizard Burton, "The potion materials I need are quite complicated. Blueberry, Floral Silver Grass…"
Wizard Burton glanced at Merlin, bewildered. Then, his expressions turned grim and looked at the black-robed old man. "Hill, who is this wizard?"
"Burton, Wizard Merlin is trustworthy. You don't have to worry about him."
The black-robed old man naturally understood what Wizard Burton meant, so he answered coldly.
