In the Shadow of the Luminaries by Kallen Samuels

Description

"Refreshingly inventive and exciting, this is an extraordinary work of science fiction worldbuilding." The BookLife Prize by Publishers Weekly Gravity suddenly reversed, in a swath encircling the globe. Two thirds of the population fell victim as flora, fauna & loose debris were catapulted into the heavens. Memories lost, technology set back hundreds of years. Was it an act of God, aliens, or a disaster caused by the ancestors?