The Killing Fields of Ga'Mon

"What is this." The guard leader said.

"This is the Killing Fields of Ga'Mon." Ao Tianzi replied.

"And I am asking what that is." The guard leader asked again.

"Explaining what it is in its entirety will be too complicated." Bai Yun said. "Let me show you."

Bai Yun then rapidly approached one member of his team. Bai Yun raised his hand and slapped him. But Bai Yun's band passed right through him.

"This is the Killing Fields of Ga'Mon." Ao Tianzi said. "It is a special technique that creates a separate space for various parties to battle in. And in this field, no external parties may interfere. We are only allowed to use our own strength inside. Any external power is banned inside this space, including pills, talismans and interference by other cultivators."

"We can see and hear the outside world, but no other form of interference is allowed." Bai Yun said.