At that moment, Charles turned his gaze towards Rhea and asked.
"Do you know why you failed to construct your third spell model?"
Hearing his question, Rhea thought for a moment and soon shook her head.
"You lack wisdom power, lass. You need to improve your wisdom before you start constructing your next spell model." Charles said in a calm tone.
"Wisdom power?" Rhea raised her head and asked in anticipation.
"How should I increase it, Teacher?"
'How would I know?' He refuted inwardly, but on the surface, he maintained a calm face and looked up at the ceiling to think for a suitable answer. After a few seconds, he took a deep breath and spoke.
"Wisdom power is nothing but a power of one's soul. When we gain new knowledge about something, it will enter deep into our soul and strengthen it. So, what you have to do now is to learn new things, gain enlightenment, and improve your wisdom."
"Do I have to go and read books from Tower Library?" Rhea asked.
In the meantime, Charles frowned for a moment and soon shook his head.
"That will only give you a shallow knowledge. Why not try experiencing new things? For example, you can go to the Tower museum tomorrow and study the origin of those old artifacts, ancient dresses, and other things. When we went to the museum last time, Jessie benefitted from a strange gem and even raised her wisdom to a large level."
Upon hearing his words, even Jessie got startled a bit and asked in a dumbfounded tone.
"When did that happen, Teacher?"
At that moment, the corner of Charles's lips curled upward and formed into a smile.
"Don't you remember the moment when you suddenly lose consciousness for staring at a strange gem for few seconds?" He asked in a sly tone.
"Are you talking about the Avarin gem in section 49, Teacher?" Surprise flashed on Jessie's face as she asked that question.
'Now I think about it, I indeed finished my mission earlier than others.' An understanding expression appeared on her face.
In the meantime, Rhea instantly engraved Jessie's earlier words and thought of checking it out.
Before she could ask more about the strange gem, Charles waved his hand and spoke.
"If you are planning to check on the Avarin gem, take Noel with you. That strange gem has some mystic power to make one unconscious. Noel is already a Tower Guard, so you don't need to go through the scanning procedures." He suddenly paused for a moment as he thought of something and soon added.
"I have something important to discuss with you all tomorrow. So, all of you must come back to our house before 12.00 Noon."
"Yes, Teacher!" All of them nodded their head in unison.
'I hope everything will go according to my plan.' He thought in his mind and soon furrowed his brows.
"Jessie, did you get the money from the ritual storage hall?" He asked in a solemn tone.
"Yes, Professor Warren already gave me the full amount, Teacher," Jessie replied with a nod.
'That's good.' Charles stood up from the sofa and spoke.
"Go and take a rest. Titus, you too take some rest."
All of them nodded their heads and soon started discussing among themselves.
In the meantime, Charles took out an ordinary brown handle cane from his space ring and started walking towards the spiral stairs.
In a minute, he went to the second floor and soon walked into his bedroom.
Then, he went near the bedroom and glanced at his game interface.
'I still have one unused Attribute point. Where should I spend it? My Wisdom is already on par with Rank-3 Mages. The same goes for Strength, Dexterity, and Constitution. But I have a vague feeling that raising my Strength, Dexterity, and Constitution up to 20 would give some big surprise...' His eyes glinted.
'But raising my wisdom power will lessen the burden when gathering the fire elements from the atmosphere. Wait... From now onwards, I should put my sub-class free attributes to Strength, Dexterity, and Constitution while the Main Class free attributes to Wisdom.' He paused for a moment and soon shook his head.
'That will directly cripple my body strength. Sub-Class only gives one fire attribute per level-up. Meanwhile, Main Class gives one extra wisdom point and two free attribute points. Moreover, I observed these mages during the past few months and confirmed that most of the Rank-3 Mages have wisdom power from 20 to 29. It means my wisdom power has already surpassed the Rank-3 Mages!'
'But here is the big problem lies. To become a Rank-2 Mage, one's wisdom power seemed to be above 15. And to become a Rank-3 Mage, I think 20 wisdom power should be enough. But that changes when it comes to Rank-4 Mage. If my guess is not wrong, one's wisdom power must be above 30. It's double the amount of wisdom power! Then, what about Rank-5? Do I have to raise it to 40? 45? Or 50?'
'Looks like I also need to gather more information about how normal mages increase their attributes. Hmm, Mr. Runeth was an ancient mage once; I think he should know many things about this.'
He thought for a moment and soon chose to add it to the Strength attribute.
After that, he changed his cloth into a red-robed one and used [Face Change] skill.
In a few seconds, his appearance completely changed into Professor Robert's one.
'It's time to go to Lydia's house and place this letter on her bed.' A calm smile appeared on his face as he went to the bedroom balcony and skilfully climbed down from the second floor.
After that, Charles silently walked out of Orchard Street, and roamed in the streets, and finally crossed the Groove Street junction.
During the past three months, Charles visited this street dozens of times and already knew all information about Lydia. Moreover, he even managed to see 'status' with the help of [Cryptic Analysis] skill and learned that she was also a Dual-Class Mystic!
'She is a Rank-3 Mystic and her main class is Rank-3 [Spatial Mage]. But what surprised me most is her unique sub-class Rank-3 [Swindler]. From Mr. Runeth, I learned that this class is a [Deceiver] series class and has a skill related to the power of Fate. Although it won't be as much powerful as [Astrologer] class skills, it would indeed alert them about the upcoming danger.'
'But to fool the Fate, I already sealed my memories about what I wrote in this letter. Everything is going according to the plan. But I have a vague feeling that many variations started to appear from now on.' He suddenly halted his thought and soon furrowed his brows.
'Interesting, it means someone already started to pay attention to my actions. Lydia? Nah, she isn't bright as her sister. Then, is it Red Prince? Did he already come to Chester City? Impossible. A few days ago, I spied when Lydia contacted the Red Prince and learned that Oswald Raven and the Lightning Mage are chasing after him. He will only come here after Lydia confirms Professor Robert's real identity. Then, it means someone else is started paying attention to my actions.' A cold glint appeared in Charles's eyes.
'I need to be extra careful.'
While he was in muse, Charles entered Groove Street and started walking towards Lydia's house.