C439 double sword-wall

"What's going on?" Dugu Ming said in surprise when he saw this.

Dugu Feng's heart sank when he saw this scene. He was familiar with this place.

Could this be?

An idea emerged into Dugu Fang's mind, he immediately shook his head and muttered: "Impossible, it's only been a few days, even if Ling Xiao had looked through it, he still wouldn't have learnt it so quickly."

"Father