Tang Zhen's heart immediately moved when he heard these words.
He had many speculations about the cause of this war, but he could not make a more accurate judgment without any evidence.
Even The Guardian was confused. He could not figure out the reason.
He hadn't expected that Grand Elder Jing Guang would be one step ahead of him and discover the relevant clues.
Of course, Grand Elder Jing Guang had also said that this clue was only a possibility, and that it didn't necessarily mean the truth.
However, since such an existence had chosen to speak, he must have a certain level of confidence.
Tang Zhen and the protector were eager to know more.
Understanding Tang Zhen's and the protector's feelings, Grand Elder Jing Guang didn't beat around the bush and continued,"One year, something happened to this world, and a city built by a divine weapon was destroyed.