Alexander looked at Turkey in surprise. He hadn't expected Turkey to know the method to upgrade 'Soul Summoning'.
"Oh, do you have any suggestions?" Alexander asked curiously.
Turkey nodded and then said solemnly, "'Soul Summoning' is not an ordinary magical skill; it's a power that transcends life and death. Therefore, if you want to elevate this skill to a higher level, you must use a substance called a Soul Crystal."
"Soul Crystal?" Alexander quickly checked his resource inventory but found no record or information about Soul Crystals. This was a material he had never heard of before, which piqued his intense curiosity.
"What is a Soul Crystal? Where can it be found?" Alexander asked eagerly.
