My nine-year-old son, Ethan, had been getting his hair cut at the same barbershop for nearly two years. Tony always cut his hair, but that Saturday, a younger barber named Marcus offered to take him. Everything seemed normal until Marcus began trimming behind Ethan’s left ear. The clippers suddenly stopped. He moved Ethan’s hair aside and stared at something for several seconds. Then he looked at me through the mirror, his expression completely changed.

When the haircut ended, Marcus quietly pulled me aside. “Check behind his left ear when you get home,” he whispered. “Somewhere private. Look carefully.” I asked what he had seen, but Marcus only shook his head. I drove home watching Ethan through the rearview mirror. He seemed perfectly normal, talking excitedly about soccer and the candy machine. Ten minutes later, I moved his hair aside. At first, I saw nothing. Then I noticed a tiny flesh-colored patch tucked against his skin. I lifted its edge and froze.