What if ...

Harry - faced with a long weekend and no plans decides on the spur of the moment to head out into the mountains and camp in a cave away from civilization for a few days. On his return he discovers the unthinkable - his world has changed dramatically, everyone is gone, nothing living remains or so he thinks.
This is his story, a story of the rebirth of this world, a world very different to the last that he and everyone else had believed would go on forever.