Saltcrop

In Earth's near future, seas consume coastal cities and mutant fish lurk in their depths. Skipper, a skilled sailor and the youngest of three sisters, earns money skimming and reselling plastic from the ocean to care for her ailing grandmother. Her eldest sister, Nora, left home in pursuit of a cure for failing crops all over the world. Now, she’s missing. When Skipper and her other sister, Carmen, receive a cryptic plea for help, they must put aside their differences and set out across the sea to save her. But their voyage through a dying world both beautiful and strange brings them to question what dangerous attention did Nora attract, and how well do they really know their sister - or each other? Thus begins an epic journey spanning oceans and continents and a wistful rumination on sisterhood, friendship, and ecological disaster.