Traitor

"How should I do this?" Hao Yu looked at the surroundings. First of all, he had to set up some explosives on the treasury. If the treasury was destroyed, even if the items were fine, no one would realize that there was a hole in the treasury before collapsing. 

On the wall, he also noticed several supporting pillars. As long as he destroyed it, he would be able to make the surrounding area collapse.

However, the problem was how he was going to do it. He had enough explosives, but he first had to wait for the cultivators to arrive. 

By the time they flocked to this area, they wouldn't miss the fire wick. He also didn't know where to hide in this labyrinth.

At first, he thought he was going to hide inside one of the rooms and lit up the bomb, but it seemed the plan had to be scrapped.