Confronting a prowler in the backyard, Dinah is determined to find out why someone has taken an interest in her older sister and herself. Who is the buck-tooth burglar? Why are the Rinaldi's tomatoes always involved? And what is the connection between Madge's boyfriend and GASP, a group of well-intentioned anti-smoking activists? When it becomes apparent that Wellman Talent, the modeling agency Madge works for, is making deals with an unscrupulous tobacco company, and that the spy is out to sabotage GASP’s plans to expose the connection, Dinah has to call on all her talents, both sleuthing and singing, to solve the case. In the spirit of Sammy Keyes, Dinah gets by on pluck, courage and an irrepressible sense of humor as she is catapulted into a mystery that twists and turns from the blackberry patch to the corporate boardroom.
Angus and his best buddy, Shahid, share a love of science and their robot, Gordon. But recently, the artistic Ella Eckles has had a peculiar effect on Angus. When a stink bomb at the school provides a chance for him to talk to her, he claims to share her interest in reading facial expressions and declares his ambition to become a crime-solving mentalist. He impresses Ella by identifying the stink bomber, but fails to mention he witnessed a scrawny kid setting off the bomb. When Ella's treasured sketchbook is stolen, she asks Angus to find the thief. Shahid thinks Angus should confess that he's not a mentalist, but Angus is certain he can learn to read people and recover Ella's sketchbook. He asks Shahid to help him investigate the suspects: Gaga Girl; the art teacher, Mr. Wilder; and finally, "scrawny kid." Equipped with rearview sunglasses and an informant who lurks in the washroom, the duo bungles their way through a series of encounters that alarm Shahid and provide Angus with some unfamiliar exercise.