Written by NY Times Bestselling Author Kristen Middleton. Planet Z After the Human race has depleted most of the Earth's natural resources, Alexandra (Alex) Logan and her little brother, Jimmy, join their parents, both planetary astronomers, in a mission to try and save what is left of mankind. The mission? Bring back conclusive evidence that Planet "Z" is the miracle they've been searching for - a planet that can sustain human life. Unfortunately, they soon learn that the wonders of this new place are overshadowed by the terrifying secrets revealed on their way to the planet.