Summer and Bird are as different as sisters can be. The older Summer is more cautious and logical, while the younger Bird is more free-spirited, as her name would suggest. But there is something different about these sisters. One day, they awake to find that their parents have vanished. Their adventure to find their parents leads them into a secret world of Birds. Their journey will reveal secrets about their mother's identity and will force them to make the most difficult choices of their lives.
