Countless runes seemed to buzz in Lin Xun’s head like millions of bees, causing him to feel a surge of irritation.

He suddenly took a deep breath and began reviewing his initial thought process and design in an attempt to find the source of the problem.

No problems had occurred when he was carving the first forty-eight rune arrays, so why had he encountered difficulty on the final rune array?

Where was the source of the problem?

Was his current mastery and knowledge unable to meet the requirements of such a complicated rune array, or had he missed out on some small detail in the process?

The problem was right in front of him and was the final straw that decided success or failure. If he could grasp it, he would be able to successfully proceed but if he didn’t, everything he had done so far would be wasted!

Lin Xun bit the tip of his tongue, tried his best to cast away any thoughts or feelings that would only serve as distractions, and began to review the entire crafting process from the beginning.

He did not know how much time had passed but something suddenly clicked in his head, causing his expression to change slightly. He had finally...