I wrote this story with my bff lol "We wanted out, but getting out meant death at anyone or anything's hands." Their only hope is a cure. A school has been quarantined and is the last source of a virus, one that as soon as you turn 18, starts weakening your body over the course of 4 years until your body gives out. If you've contracted it when your already over 18, you die immediately, your life is only prolonged, brutally so, but still prolonged if you're a kid. Everyone in the school carries the virus, and so they are quarantined- for how long, no one knows.