The year is 2119. Twenty years ago the world changed forever. Almost overnight, the serene, blue sphere that was once our Earth, was reduced to a dark green smudge, shrouded in a blanket of torrential storms. Millions died in the flash floods. Millions more succumbed to disease. Luna McKelly's parents were among the survivors who fled to the shielded city of New Denver in the early years of the disaster. Now 18, Luna is a gifted scientific prodigy working on a cure for the dreaded Blister Wart disease-a fungal infection that rapidly consumes its host if left un-checked. But when an expedition into the swamp goes horribly wrong, Luna soon finds herself questioning everything she thought she knew as her entire world unravels around her.