The Blast Series by Chris Lange

This new world is dangerous, lonely, and scary. No Blasted or Hollowed roam the streets, yet the end has come. As if being sucked into a void of nothingness isn’t terrifying enough, she now has to face both her future and her past. The man she believed gone forever has found her again, and he won’t let go. To destroy her most dangerous enemy and restore the world, she must kill him once and for all.