Parker

After ten years, mankind is on the break of a cure to sterility. After taking down a mad woman our team is working against the clock to create another cure and fighting the hybrids that are now ravaging the East coast. While some focus on having new families, some are focused on reconnecting with lost loved ones.

A continuation of Loving a Safari Guide,
Out of Time,
After the End.
and Runaway to Africa

The fifth book in this series.

I don't own any of the original Zoo characters or the main idea.
I do own Katherine, the other new characters and the continuation of the storyline.