C286 Elemental Energy Explosion

Tang Chuan didn't explain. He walked up to the brick wall in front of him and reached out his hand to touch it. After counting from left to right to the eighth piece, he lightly tapped it three times before taking a few steps back.

Two seconds later, a one-meter-square hole was opened in front of Tang Chuan and Yin Qingrou, and a flight of unfathomably deep stairs led straight down