After a quick glance, Lin Yi took two steps back, thinking about what to do as he tried to open the black door.
He didn't think it would be easy to open the door, but it opened with a light push. Surprised, he used his spirit sense to check the room, and only walked in after finding nothing unusual.
In this area, the range of his spirit sense was just enough to observe the entire room, making sure that there were no ambushes. Of course, before opening the door, Lin Yi's spirit sense would be blocked by the door, and he wouldn't be able to use it to find a way in.
If he wanted to find the passage, he had to open the door and enter the room to confirm it!
As expected, there was nothing in the room. Lin Yi wasn't that lucky, and he didn't expect to find the passage in one try.