The Silent Invasion: The Change Trilogy 1

In a world where Earth is succumbing to a deadly alien spore infection, 16-year-old Callie must flee with her sister Gracie, who is beginning to Change. As they escape the merciless quarantine officers, they venture into the Zone, where Callie will face life-altering discoveries that will propel her on an extraordinary journey across the stars. This thrilling tale marks the beginning of an epic trilogy from award-winning author James Bradley.