Before opening the envelope, I study the way it is sealed. I don't
know why, maybe it was some sixth sense, but I discovered that
underneath the flap of the envelope a thing yellow wire ran into the
envelope. Why would paper need a wire? Obiously, this had to be a
bomb. But who would want to kill me? I had hardly even begun this
case. All I knew was that things were just starting to get
interesting.