I walked to the bookshelf first and started looking through each book and file there. Slowly, I looked through everything I could see, but I found nothing there, which was a good thing. I sighed in relief.

After the bookshelf, I moved to the table, paintings, cabinets, and then everything. Everything was clean, and I found no such tapping device anywhere. Perhaps, there was only one tapping device in this office. What about the rest of the office? What if there was something planted outside ...