Instruct: Classify a review into positive or negative sentiment.
Query: very good read

This is a very enjoyable book which mixes the magic and mystery of Ireland, spirits, and selkies into one story about a girl growing up and searching for information about her parents' identities and her own. Even though her mother is alive for much of the story, she isn't forthcoming with details, and Clodagh feels she hardly knows her mother, especially her mother's past. Clodagh's dead twin sister often feels as if she too is nearby. The truth about her parents, and also herself, comes as a surprise.