Without a Sound

Exploration Stage: Octopus Citadel
From: Mr. Black
Description: After passing this corridor, we’ll turn right and, if we’re not detected, enter Violet’s office. Curses, this floor creaks terribly - someone is bound to hear us! Use my noise freezer - it will kill all unwanted sounds.
Completed: It worked - the noise freezer made our every step silent. This device has helped me multiple times. It neutralizes any sounds emitted within a radius of five feet. The noise freezer’s power is enough to even silence a gunshot.