Years and years past with the fight of two main creaters. Wolves and Bats. Both craving fights, killing and blood no one could stop them. When they started it took alot to stop them. But when they had fights, they where not alone as most of the time they would just jump at each others necks in public, so humans where always at the risk of getting killed. But in history it had been known for the two creaters to fall in love with a human. But no one knows what happened after for sure. They may get changed or one will just grow old and the other watch. If that happened it was always painful for the Wolf or Bat. They never got old after they where 19 if they where born into the Gene, or when they where changed. The humans would either live in fear that they where going to get killed just going out to get some milk. And some had grown up to kill the animales. These people called Chasers, named for chasing down and killing there targets, would have been from a young age trained in every way possible to kill there targets. But it would never be one person going out. Lowest was two, always.