C309 Bai Qingcheng's Invitation!

If Bai Qingcheng was merely surprised before, now her heart was roiling with profound shock.

She had assumed Chu Lin, with his youth and exceptional skill in drawing formation patterns, was merely at the beginning of the Profound Rank High Level. She believed that Guu Yong, a well-known collector of formation patterns, had purchased Chu Lin's work at a premium simply to acquire his designs.

Yet