C881 The Siblings Were Suspicious of Each Other

Yun Tianyu smiled indifferently. "You have to know the situation. Won't you know when you go in and take a look?" As he spoke, Yun Tianyu fumbled around the wall on the right side of the wall. He found a slightly protruding stone and pressed it. A wall beside him suddenly slid inwards silently. A door appeared, and Yun Tianyu entered without hesitation.

There was a curved tunnel inside the door