Then the men turned their attention to each room. A small hole was made in the corner of every room, high up where no one would notice it. A tiny microphone was placed inside each hole. A wire, no thicker than a human hair and completely invisible, ran from each microphone to the receiver. The receiver looked exactly like an old, broken radio, and it joined other old objects that were already there in a corner under the roof. It would not be noticed for months, maybe years. And if it was noticed, it would simply be thrown away as rubbish. The receiver, of course, would also send signals from the house back to the fifth floor at Bendini, Lambert & Locke.