After her mother's death and her father's suicide, fourteen-year-old Teddi finds some stability when she moves in with Mamie, her good-hearted next door neighbor--until the arrival of a woman claiming to be the pregnant wife of Mamie's son who recently died in a plane crash.
Pursued by her much older brother, famed detective Sherlock Holmes, fourteen-year-old Enola, disguised and using false names, attempts to solve the kidnapping of a baronet's sixteen-year-old daughter in nineteenth-century London.
At the start of the Klondike gold rush of 1897, while traveling through Canada with her father, uncle and friends, twelve-year-old aspiring author Hetty tries to determine the identity of a thief.
William loves to explore Toad-in-a-Cage Castle with it secret passages, stairway that winds down to the dungeon, and the weird creature named Igor who lives there. Then he searches for the cause of the mysterious night noises.
When Linka Perflinger, a jaunty mouse, brings a watch into his shop to be repaired and then disappears, Hermux Tantamoq is caught up in a dangerous search for eternal youth as he tries to find out what happened to her.
Bernadette, having wished on the eve of her fortieth birthday to be young again, wakes up the next morning as a twelve-year-old, and enrolls in her son Patrick's class in hopes of somehow enlisting his help in returning to her old self.
Noticing that a popular series of horror novels is having a bizarre effect on the behavior of its readers, Franny and Beamer set out to find the mysterious author.