The soundproofing in the concert hall was quite good, but backstage, you could still hear the symphony playing.
The doctor and Shard, who had officially infiltrated the place, disguised themselves as music enthusiasts visiting famous musicians, and were not worried about having their identities exposed for the time being.
The two made their way to the second floor via a small stairway on the east side of the concert hall. Although the doctor could generally sense the location of the demon he had marked, since the demon was aware of being tracked, the doctor's senses were not too precise. He could only confirm that the demon was in one of six rooms, positioned in pairs and visible once you turned the corridor. People came and went in the corridor, either holding performance costumes or loudly reminding musicians preparing to go on stage to quickly fix their makeup.
