The memory surfaced in Grim's mind like time had stop for a moment. Cassius standing beside him on a mountain precipice, the old man's face stern as they practiced the forms of the Aurora Flash Sword Dao.
"You must understand the risk," Cassius had said, his voice carried away by the mountain wind. "Any light technique developed by Caius, Malaxis can detect. He can feel it, no matter the distance."
"Then why teach me at all?" Grim had asked, frustrated by the constant warnings.
"Because here, in these mountains, we are shielded," Cassius explained. "The unique properties of this range block energy signatures. Yongrun has tested this over the years. Malaxis never appeared, despite the usage of the techniques."
"But outside the mountains?"
"Outside, every time you use the Aurora Flash or any of Caius's techniques, you risk drawing his attention. It becomes a beacon, announcing your presence to your greatest enemy."
