Qin Yu held his breath as he stared at the distant figure of Wu Lan, whose right hand, radiating with black light, slowly touched the emerald liquid, only for Wu Lan's right hand to tremble unexpectedly.
"Even Wu Lan can't withstand this One-element Heavy Water?" Qin Yu's heart tensed.
Wu Lan's right hand paused momentarily, then retracted back as swiftly as lightning.
Moving swiftly, Wu Lan was suddenly by Qin Yu's side.
"What happened, Wu Lan?" Qin Yu already had a bad premonition. Wu Lan's expression was solemn, and at this moment, the skin of Wu Lan's right hand was as pale as ice.
Wu Lan's gaze was still fixed on the distant emerald Cold Pond as he spoke softly, "Qin Yu, I'm certain, that emerald water pond is not just simple One-element Heavy Water."
"What happened?" Qin Yu had no idea what had just occurred, as he had only seen Wu Lan's right hand enter and pause for a moment.