[Ellie's P.O.V]
Invisibility!
The only way someone could disappear from right under everyone's noses was by using the invisibility potion that Anna had once used! It seemed these people were indeed connected to the witches. However, it couldn't have been Anna.
I thought the younger brother might have some other means of escaping, perhaps some abilities we were unaware of, but it turned out he relied on something given to him by someone else!
"Sir, I'll find a way to get you out!" The voice of the younger brother echoed through the room like the wind, but his body was nowhere to be found.
"What a fool! Such an idiot!" The older brother heard these words and became angry, muttering curses under his breath.
The black-clad individuals didn't panic. After the voice of the younger brother disappeared, they vanished as well.