First, I should outline the basic information about the book. The "Wings" series includes four books: "Wings", "Wings 2: Soars", "Wings 3: Soars", and "Wings 4: Soars". The main character is Aprilynne Pike. The story is about her being taken from the mortal world into the realm of the Sylphs, a species of air fae. She's the first half-fae ever born, and the fae need her blood to survive. The series deals with themes like identity, survival, and the conflict between humans and Sylphs.