Wilhelmina Snodgrass and her family move to the Willamette Valley, Oregon, against her express wishes. Not only is she sure her life is over, but she's convinced she won't make any friends. That is until she meet her eccentric blue-haired neighbor, Thomasina Andretti. Willy and Tommy become involved in a conspiracy to reopen The Willamette Wig Factory, with their unsuspecting friend, Georgianna Carbunkle. The plot, however, is orchestrated by three of Willy's ancestors, from beyond the grave. Scrapes, mishaps and the unforeseen occur; including becoming sworn enemies with Tiffany Peterson, the most popular girl in the seventh grade, a crush on super-stud, Jamie Armstrong and a mysterious carousel. Willy and Tommy have it all-mystery, revenge and romance. Monteith, Oregon, becomes the stage for adventures beyond their wildest dreams!

Wilhelmina Snodgrass has it all, a new school, a sworn enemy and adventures galore! In Wilhelmina and the Willamette Wig Factory, Willy Snodgrass not only moved to a new town, but learned her family's relocation was orchestrated by three ghosts that are related to her. Her Mission: to help her great aunt Georgie reopen the once famous Willamette Wig Factory. In Who the Heck is Harvey Stingle?, Willy and her best friend Tomasina Andretti, are hard at work solving a new mystery. Who the heck is Harvey Stingle and why can he see and talk to the ghost from Willy's family? Never in their wildest dreams would the friends have guessed the truth. On a quest for clarity, they travel to a year that holds the answer. Will spending time in 1889 Monteith, Oregon, answer their question? Will this new adventure lead to another mystery?