C686 The Special Ore

The ore's surface was a hue of greenish-blue, hard to the touch with a metallic feel.

Tian Leizi rapped his finger against the ore's surface.

Ding!

Ding!

Two clear, resonant sounds echoed through the courtyard.

"The sound is crisp and resonant!" Tian Leizi's eyes sparkled as he murmured