The Hand

"You can come out now." Agatha looked at the empty corner of the room.

After she spoke, there was a faint shadow on the wall. Nightingale then came out of nowhere and blocked the dim candlelight.

"When did you discover me?" She sounded a bit surprised.

"When I took the ring from No. 76," Agatha said as she shrugged her shoulders and raised the jug, "would you like a cup?"

"If it's your treat." Nightingale sat down opposite the Ice Witch and said, "Can that magic stone sense magic power?"

"It's not magic power but an orange light beam, or perhaps I should say... the 'key'." She took out an empty cup, filled it readily and pushed it to Nightingale. "Your beam lit up half a room. It was hard not to notice it."

"Did she notice that too?"

"Most likely," Agatha nodded. "She didn't mind revealing her identity in front of her own kind."