The old wooden door placed in this room looked ordinary, but in truth, it was filled with eerie, incomprehensible terror.
Cao Yanhua clearly remembered the price they had paid to resolve the incident codenamed Ghost Door. If not for the possibility that this thing might prove useful at certain times, he would never have kept this wooden door here. It would have been completely sealed away long ago.
"Four minutes left." He stared intently at the time on his watch.
The agreed time in the original plan was about to arrive.
Four minutes later, Old Qin, who was inside the room, would open this Ghost Door for the first time.
The purpose of opening the Ghost Door this time was simple: to bring Li Jun, Su Fan, Liu San, and the others back from some unknown place.
Although their group had now lost contact, and they were suspected of having appeared outside after their ghosts revived, there was no guarantee that the five ghosts that had emerged from the Ghost Painting were actually them. What if they were not?
As long as that possibility existed, this operation could not be canceled.
"At most, we have three chances to open the door. After the first opening, the next one will be ten minutes later. The third opening will take place half an hour after the second. If they still haven't returned after all three openings, then we can only..." Cao Yanhua was deeply uneasy.
If three chances to open the Ghost Door could not bring Li Jun and the others back, it would be enough to prove that they really were dead.
Even if they were not dead, the rescue operation would be canceled. Opening the Ghost Door also carried enormous risks. It simply was not worth endlessly gambling on the