I promised to tell you about the monster. It was a failed controller, it flipped out and it seemed as if someone knocked at the door. That's how we create fears for ourselves. Interestingly, if I didn't go and check what that was, it would be turned off in 15 minutes by the shutdown relay. After that, it would be extremely difficult to determine the source of the night sound. That's how all those stories from the newspapers are born, I assume. I can bypass the signal jammers by reconfiguring their frequency without arousing suspicion of their owner as if things are still the same as they were. I need a bit of electronics for this I think you can help me with. The materials must be found silently so no one would get to know about what are we working on.