Catalyst

They thought they had survived the worst. Now they must band together or face certain death. . .

The world is still reeling from the devastating solar flare that left most of the world without electricity or the means to restore it. Cities, nations, and governments lie in ruins and billions have perished. Survival has become a way of life in a world that seems intent on wiping out all remaining humanity.

Among the survivors are Scott Montgomery and his friends, who are now residing on the cruise liner Aquatic Goddess. But threats abound outside their peaceful community--both manmade and natural. On the other side of the world, a terrible bioweapon has been unleashed with devastating results. With a tropical storm bearing down on them, Scott must band together with the Navy to help them thwart the Catalyst plan and in return, they promise to protect the community back on the Aquatic Goddess. Meanwhile, evangelical terrorists calling themselves The Messengers start sweeping through each state like a biblical plague, destroying everything--and everyone--in their path. Scott and his allies must rise up against these threats to protect what remains of their community and force these warring factions to finally work together . . . the survival of mankind will depend on it.

Kingdoms of Sorrow continues the tale begun in Catalyst Downward Cycle.

Get this one now
Buy the book, and for a real treat also listen to the audiobook version.