Using Quenching Liquid to temper the body was already very dangerous, let alone using it to temper the soul. On top of that, Ling Qiong was Ling Tian's grandson, a person of special status, and Old Man Ling and the others doted on him immensely. When he used Quenching Liquid to temper his body and soul, someone would surely have been standing guard nearby. They should have known what kind of power had protected his Nascent Soul at the time.
"Brother Tian, it was Senior Sister and me who guarded Qiong'er back then," Hua Min'er said. Seeing Ling Tian's questioning look, she gave a wry smile. "But I could only sense that energy. I don't know what it was, though it did a great deal to protect the Nascent Soul. It couldn't stop the pain, but it could keep the Nascent Soul from collapsing."
"You don't know either?" Ling Tian said, slightly taken aback. Then he looked at Yao Yu, but she shook her head as well, clearly just as unsure.
"Tian'er, was there any force protecting you when you used the Quenching Liquid?" Zi Yun suddenly asked from nearby.
"No." Ling Tian shook his head.
"Then it probably wasn't energy produced by a Heavenly Treasure like the Divine Soul Fruit. After all, the materials used to temper the body and the soul are much the same," Zi Yun said. Then, as a thought occurred to him, his eyes lit up. "Could it have been the energy produced by a Soul Condensing Stone?"
"Possibly," Old Man Ling said. Then he sighed. "It's a pity we don't have any Soul Condensing Stones left. Otherwise, we could try adding one to the Quenching Liquid used solely for body tempering. Then we'd know for sure."
"Exactly. Too bad Soul Condensing Stones are so