River heights was holding a rubber-duck derby in order to raise money to get their park brand new benches, but someone has stolen the box of ducks right from Nancy Drew's doorstep. Nancy, Bess, and George get to investigating their primary suspects--Dorothy Danner, who has a duck-themed baby shower coming up; Antonio Elefano, who lost a duck joke competition; and Kinsley Ambruster, who is after the record for most rubber ducks owned.
Help investigate the case of a missing lemonade recipe with Nancy and her friends. The girls want tickets to see pop singer Katy Sloan play at the River Heights Amusement Park -- but their parents say they've already filled their summer theme park quota. So the girls decide to turn lemons into lemonade by earning their own tickets -- with a lemonade stand! Unfortunately Lily Ramos, a new girl in River Heights, has the same idea. She's the niece of...
11) A star witness
Famous astronomer Dr. Arnot gives Nancy, Bess, and George a star-studded planetarium show and promises to let them gaze at the night sky with his famous telescope, the Starship 5000, but the telescope goes missing. It's up to the Clue Crew to investigate the suspects and track down the telescope snatcher.
Nancy, Bess, and George are excited to be visiting Hawaii. The girls take surfing lessons, swim with manta rays, and experience all of the beautiful sights on the Big Island. When they go to a luau one night, they get to taste all sorts of yummy local foods and even get to help with the hula performance. But during the show, a guest has his fancy camera stolen. Nancy, Bess, and George will have to find the thief before they can go back to enjoying...
14) Boo crew
Nancy, Bess, and George--who make up the Clue Crew--investigate strange things that are happening at the Heights Theater, rumored to be haunted, during auditions for a televised kids' talent show. Someone is sabotaging the auditions and the girls must narrow down a list of suspects and uncover the truth before the show can begin.