Another exciting mystery begins for the attractive young detective when her friends Bess and George ask her to investigate a rumor that their wealthy great granduncle, Asa Sidney, is virtually a prisoner in his own mansion. But solving the mystery and befriending Carol Wipple, the sixteen year old foster daughter of the caretakers of the old mansion, nearly costs Nancy the friendship of Bess and George. It takes all of Nancy's sleuthing ability as well as diplomacy to save it. Recommended for ages 8 to 12
