Someone is trying to sabotage the charity project Nancy Drew is working on with famous mystery writer Hazel Perrault, and Nancy is determined to get to the bottom of the mystery before the project--and the big fund-raising gala at the end of it--is ruined.
Eight-year-old Nancy Drew is thrilled to be invited to Deirdre's City Girls-themed sleepover party, but her investigative skills are needed when Deirdre's Hollywood Heather doll goes missing.
Famous visitors have both Nancy and Bess excited--Nancy about astronomer/radio personality Dr. Stars, and Bess about Hollywood heartthrob Will Ryder. But anticipation turns to investigation when Nancy discovers her hero's deserted van and one of his rivals appears in town.
Nancy joins an Elizabethan troupe as a lady to the queen's court. There are performances and feasts, but the true drama unfolds when Nancy learns that she, the queen, and the entire festival have been targeted for sabotage.
As the annual snow festival approaches, Nancy, George, and Bess look for the sneaky suspect sabotaging the swan they are building for the snow sculpture contest.