When a box of gems is stolen from the painter Isabel's apartment less than a week before Christmas, Polly and her friend Kyle decide to solve the mystery on their won, and, before long, they have the criminals on the run. At home, however, Polly is still "the Invisible Polly McDoodle." Her parents lavish attention on her older brother, a Junior hockey hero, yet fail to take Polly's interest in drawing seriously. When Polly's doodles ultimately solve the mystery of the apartment burglaries and even help to catch the thieves, her family begins to see her in a new light and Polly finds the confidence to speak openly about her dream of becoming an artist like Isabel. Mary Woodbury is the best-selling author of the young adult title The Ghost in the Machine, the Polly McDoodle Mystery Series, and Jess and the Runaway Grandpa, a finalist in the Silver Birch Young Readers Choice Award, and a Canadian Children's Book Centre "Outstanding Title of the Year."