"What do you mean? I know how it works. I store a spell and then I cast it." Tista replied.
"Yes, that's one of the powers of the Mouth but not the only one." Solus chuckled.
"Really?" Lith and Tista said in unison. "Why didn't you tell me sooner?"
"Because until now I didn't know either." Solus shrugged. "While we waited for the Thievery to stabilize, I had the Eyes focus solely on Tista's Mouth. That's how I learned about another of its interesting functions."
The Apprentice's Eyes were devised to be incapable of analyzing any of Menadion's masterpieces. It was a safety measure to ensure that the disciple who owned the Eyes could not use them to reproduce the other pieces of the Set if not the tower itself.
"How could we miss it for so long and how could you study the Mouth so quickly?" Lith asked.