Aeon — Stephen L. Nowland

Survival in a shattered world Eight decades after the collapse of the colony world of Paragon, Zinada Fierro scavenges the ruins for relic technology and medicine to treat a terminal condition. Driven to search for answers to what caused the fall of civilisation, her life of daily survival is upended when the death of a friend and an unexpected discovery makes her the target of a vicious gang, scouring the land for a mysterious drug called Aeon.