Fae - The Wild Hunt Book One of the Riven Wyrde Saga

Sometimes the faerie tales are true. Sometimes they are a warning. For a hundred generations the fae have been locked away from the world, in the cold, the Outside. They have faded out of sight and mind, into myth and folklore. But now the barriers are weakening and they push against the tattered remnants of the wyrde as they seek a way to return.