Shattering crystals book 1

When a monster from the woods follows Zonnella into her village and breaks the heart, she must survive in the forest it came from. Meanwhile her village, left behind with the looming fate of death, tries to find a way to save the flowers that protect them from the poisonous effects of the slime. No matter how, they all must try and survive in their own way, knowing that the world they used to live in is dying.