The Last Beekeeper (Silent Skies) by Rebecca L. Fearnley

Could you save the world if it meant sacrificing the person you love most? In Sand’s End village, secrets are forbidden. Any change in the land could mean life or death. Solma is used to protecting her community from the dangers of their harsh world. But with insects extinct for over a century, the biggest threat to her village—and her beloved little brother, Warren—is starvation and disease. Solma lives in fear that her brother will be the next to die. But then Warren finds something. Something impossible. When the first bee seen in a century crawls from the stricken earth, Solma knows she should report it. She’s going to. Absolutely. But Warren forms a strange and magical bond with the creature—a power the world has never seen before—and Solma breaks every rule she’s ever lived by. She fails to tell the village Steward. She keeps a secret. She lies. Now, Solma and Warren are keeping the biggest small secret their world has ever known. And it turns out, bees don’t like being kept quiet. As news of the miracle spreads the continent, drawing allies and enemies alike, Solma has a terrible choice to make. Can she protect the bee and save the world if it might mean sacrificing her brother?