Following Magic — Kathleen Duey

Faerie princess Alida and Gavin, the human boy who helped her escape from Lord Dunraven's castle, are desperate to find Alida's family, now living in a hidden place where the banished faerie community has resettled. Alida and Gavin's friendship grows stronger as they face cold and rain and the constant threat of Lord Dunraven's guards. And now that Alida's escape has put the fragile peace between Lord Dunraven and the faeries in jeopardy, will her family welcome her?