In the near future, mankind is plagued by increasing amounts of mutations; some are debilitating, others are beneficial, but most are dangerous. Few of these occurrences are present at birth. Most mutations only manifest in the host's teenage years. Here's the story of one of us...
In a sleepy town (doesn't matter where), my cousin was sick. For simplicity, let's call him James. He had to leave school early because of the vomiting and headaches. Later that evening, his parents were very worried about James. He wouldn't stop vomiting and his headaches were getting worse. At around 8:30 that night during a particularly bed headache, the lights in James's house started to flicker. His parents thought it was the power company. They were wrong.