"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.
"It was actually an overlook on our part." Solus sighed. "We tried to study our Mouth with our Eyes but got nothing because it's still incomplete. Tista's, instead, has all of its functions but since Fyrwal explained to us how it works, we assumed there was nothing else to learn.
"I performed the scan on a whim, hoping that the collected information might speed up the recovery of the tower since the various floors are linked to our Set of Menadion. Of course, it didn't work.
"What happened, instead, is that by using the information already available about our Mouth as a base, the Thievery had to scan only for the missing part, which wasn't actually much.
"Like the blade in the Hands, the Mouth has a hidden function as well. I hypothesize that my mother taught about them solely to the disciple to whom she had gifted each piece and that these functions were lost to time because the various pieces were never passed down.
"They were stolen and I bet that no mage is willing to reveal such a secret to their murderer."
"What does the Mouth also do?" Tista asked.
"More importantly, can ours do it as well?" Lith added, drawing his sister's glare.
"Respectively, let me talk and partly." Solus tutted them both. "As I said, the pieces of our set will remain incomplete until all the relative floors are recovered."
Then, she turned to Tista.
"To answer your question properly, the Mouth can store not only spells but also enchantments."
"Isn't that almost the same thing?" Tista was puzzled.
"Not quite. The stored spells still need to be cast, albeit way faster than usual, and they tap into your mana. The temporary enchantments of the Mouth, instead, activate instantly and tap into the energy reserve of its power core." Solus explained.
"It means that you can imbue the Mouth with a Spirit Barrier if you want additional protection. A healing spell if you think you'll face a hard battle. If the first enchantment is akin to having an extra casting method, the second is like having multiple spell-holding rings of all tiers."
Tista's face lit up in a smile as she realized what it meant.
"Can I add enchantments of every type? Even Spirit Spells?" She asked, receiving a nod in reply. "How many enchantments can the Mouth store?"
"Yours, three. Ours, one." Solus replied.
"Why so few?" Tista said with a tinge of disappointment in her voice.
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