C870 Tian Xuan's Trump Card

In the hall, Yuan Xin took a few steps back and quickly put the flute by her lips.

Her fingers moved quickly and a rapid sound of the flute came from her lips.

The sound of the flute was very heavy. It was like the sound of war drums on the battlefield and also like thousands of soldiers and horses boiling. It made people want to fight when they heard it.

On the other side