Black River City, Purple Thorns Inn apartments.
Chen Mu sat cross-legged on the bed, his eyes tightly shut.
Compared to the calm outside, Chen Mu's Spiritual Sea was anything but peaceful at this moment.
"This is way too difficult!"
The next moment, Chen Mu opened his eyes and sighed inwardly.
He had just attempted to carve the Spiritual Eye Wizardry into his Spiritual Sea.
It could not be called a failure, but neither could it be called a success. If he had to put it into words, Chen Mu had currently completed one forty-ninth of it.
Carving wizardry into the Spiritual Sea required one to use the Rune Carving Method to inscribe the corresponding Mysterious Symbols within it, eventually forming a Spell Structure.
Some relatively simple wizardries might only require a few Mysterious Symbols.
But Spiritual Eye Wizardry required forty-nine different Mysterious Symbols to be carved into the Spiritual Sea before they could be combined into a stable Spiritual Eye Wizardry structure.
The difficulty of that was easy to imagine.
Although Chen Mu had successfully carved one Mysterious Symbol into his Spiritual Sea, it would only become more difficult from there.
After successfully carving the first Mysterious Symbol, Chen Mu had also tried to carve the second.
He found it even more difficult than carving the first.
Just as Chen Mu was preparing to continue while the momentum was there, someone knocked on the apartment door.
Chen Mu rose and opened it.
A skinny, dark-skinned boy stood outside, his expression anxious.
"He Tu, why are you here?"
This skinny, dark-skinned boy was none other than He Tu, the one who had guided him when he first arrived in Black River City. They had gotten along quite well over the past few days.
When he saw Chen Mu open the door,