Xue Wang rushed back to the Tower of Darkness in a hurry and found that the situation was already under control. All the variant vampires were restricted to a certain area, but Experiment No. 7 and Experiment No. 8 had vanished without a trace.
Xue Wang was furious and ordered a thorough investigation; it seemed impossible for two people to just disappear, especially when one was in a coma.
Since the surveillance on the fifteenth floor had been destroyed, no one knew what had happened, and no one knew how Experiment No. 7 and Experiment No. 8 had managed to leave.
It wasn't until two guards came running saying that their clothes were missing that Xue Wang concluded, Experiment No. 7 and Experiment No. 8 must have knocked out the guards, stolen their uniforms, and then left disguised as guards.