Hating her new home in Arizona, twelve-year-old Callie finds her prospects changing when she glimpses a phantom horse outside her window and is drawn into its quest to be reunited with its ghostly owner

Preparing for her first trail ride in order to ease her loneliness for the ghost horse Star, Callie Fern considers sharing her secret about Star when she and her companions are stranded on the trail and pursued by a sinister stranger. Original.

Enjoying her summer of secret rides with ghost horse Star, Callie Fern is disappointed when the arrival of the new school year makes her less available and is alarmed when Star becomes ill and draws Callie into her ghost world. Original.