Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Margaret Sutton's Clue of the Stone Lantern

Twenty-first in this series which is partially based on real- life events of the author and her friends and family, this mystery story was published in l950. The setting is apparently not too much before that. It is the fifth mystery to be written in which Judy is married. As in a few previous books, this one features a little girl named Roberta, whom Judy has come to know well and to love. In this story, Judy is set on the trail of Roberta's real parents, who have been missing for most of the little girl's life. Roberta inadvertently provides the clue to finding them when she recognizes a stone lantern appearing on a seed package. Like other Margaret Sutton stories, this one is hard to put down and heart-warming. Although it is not my number one favorite, that is only because some of the other books in the series are even more exceptional, and I certainly recommend it, as I do ALL the Judy Bolton books.