Her mother has gone on a bus trip and has mailed postcards at every stop.
Suddenly the postcards stop coming. Sal sets out on a journey with her grandparents to follow the trail of the postcards to see if they can solve the mystery of what has happened to her mom.
Prepare to fall in love with her grandparents and prepare to share in the tales that Sal tells in the car, as they eat up the miles. Tissue box required! This book is the 1995 Newbery Medal winner. Ages 9-13