The Array I am using to Seal the room—to completely isolate it from the rest of the world—is the very Array that is supposed to be used to Seal the entire Dukedom.
It is a high quality one, so the ruckus happening inside the room will stay inside the room until I decided to deactivate it. In other words, no one, even those standing right in front of the door outside, can detect or intervene in the commotion.
I set up the Array when Winerva and I checked in to the hotel. I suddenly felt the need to prepare for when things gone awry at that time, so I sneaked into the ballroom and spread the Array Scroll on the wall of the room.
Much to my surprise, the Array immediately merged with the wall as soon as I opened it. I couldn't also sense it even though it was right in front of me, but I still could locate it because I was the one who set it there.
