I adore the world Owens has created with her Celta series. It's so rich and well developed, I feel like I'm there as I read the stories. This is a collection of four short stories for characters we've seen pop up in previous books. While I don't think it's required that you read the series before reading these, I would suggest it if you want a richer reading experience. I enjoyed all four stories. They made me anxious for more. For the first time, I'm glad I'm slightly behind, as it means I have two books to read and won't have to wait for the next book to come out.