"The Phantom Friend" is part of the Judy Bolton series, which follows the adventures of the teenage sleuth, Judy Bolton. In this particular book, Judy is confronted with a mysterious and unsettling situation involving a phantom or ghostly figure.The story begins when Judy Bolton encounters a mysterious figure who appears to be haunting a local area. As she delves into the mystery, she discovers that the phantom is connected to a series of strange occurrences and secrets involving the local community.