Look for the books in the series, After: The Shock, After: The Echo, and After: Milepost 29, and the spinoff series Zapheads: Bone and Cinder.
"Nobody thrills like Nicholson does. Nobody." - J.A. Konrath, Origin
"Like Stephen King, he knows how to summon serious scares." - Bentley Little, The Burning
The beginning of the end...
When NASA scientists detect intense solar activity, the warnings go unheeded. Soon communications fail, power goes out, and the world's technological infrastructure collapses.
But the solar radiation has also inflicted an unpredictable change—a disruption in the impulses of the human brain. Billions die. And they are the lucky ones...