The Pocketwatch.

Mark is alone and afraid. After thousands disappeared and the world descended into chaos, he left to find a new life. But without food and fresh water, how long can he survive? Lucas and his trusted friends are holding up in an abandoned college, but finding new food is dangerous and risky. How long will they hold out? And what is the meaning behind the disappearances? Only one road lies between them and the truth. Will they find it?