Kathleen Duey 
Wishes and Wings 

Alida has escaped Lord Dunravens castle and defied his law to find her exiled faerie family. Using new magic to protect themselves, Alida and her family make the dangerous journey home, back to their beloved meadow near the human village of Ash Grove. When Dunravens greed threatens the villagers with starvation, Alida wants to help them. But if Lord Dunravens guards find out that fairies are helping humans, her family will be in terrible danger.