C574 Use of Formula

At this moment, when Tang Ao mentioned the Taiqing Mysterious Mirror, Xia Qianyu became obviously more vigilant. Senior is not a disciple of the Taiqing Gate, how do you know about Taiqing Mysterious Mirror? " At the same time that Xia Qianyu and Tang Ao spoke, a dagger dropped from her sleeve. Although Xia Qianyu's small hand was still trembling, the expression in her eyes was incomparably firm