Beginning in March of 2011, people began posting videos on YouTube of odd sounds that seemed to have no source. I first became aware of them about a month ago, when Anne and I briefly heard one filling the air, a great roaring that died away as suddenly as it had begun. It was just enough to cause us to take notice, but we thought no more of it. A few days later, there was a reporter here interviewing me about Solving the Communion Enigma. The moment he came into the apartment, he asked what the strange noise was. He described it as a sound like a glass harp. We couldn’t hear it at all. He adjusted his equipment, determined that it wasn’t being picked up by his recorder, and completed the more