Nancy and her friends think there is nothing more fun than ice cream in the summer. So when they find out that the owners of the local ice-cream factory are hosting a contest, the Clue Crew can't wait to enter Contestants must come up with brand-new flavors. And they can use whatever ingredients they want Nancy is sure that her entry -- Clue Berry -- will win

But when a friend's secret recipe goes missing, Nancy suspects that someone not-so-sweet is up to no good.

Nancy and her two best friends, George and Bess, are so excited They have been invited to Deirdre's sleepover party There will be pizza, cake, and even a pajama fashion show. But the most exciting thing is that the party has a City Girls doll theme. All of the guests are bringing their dolls with them

But then Deirdre's City Girls doll -- Hollywood Heather -- goes missing. Is her sleepover ruined? Or is there a detective in the room who can make sense of this mystery?

River Heights is hosting its first fashion show -- for dogs Proceeds will go to the Rollover Rescue animal shelter. The Clue Crew is excited because not only will the day be filled with tons of cute pooches, but Nancy's own puppy, Chocolate Chip, will be a model in the show But of course, there are some bumps along this fashion show's runway when someone steals a special basket of gourmet dog biscuits. They belong to doggy-diva Lola, a fancy poodle who's the star of the show Can the Clue Crew sniff out this doggy-biscuit burglar?

The circus is coming to River Heights The flyers claim this circus will be the biggest and best show around, with the funniest clowns, the cutest animals, and the most daring acrobats. Nancy and the Clue Crew can't wait to see it But when the performers are forced to go on without some very important props, Nancy begins to wonder, Is someone clowning around with this circus? She's not sure, but one thing is certain -- what Nancy and the Clue Crew discover proves that the circus really is the greatest show on Earth

It's Halloween in River Heights The girls can't wait to go trick-or- treating and are busy getting their costumes ready. They also can't wait for the Halloween special of their favorite TV show. They even get the chance to visit the TV studio while the show is being taped But soon after they arrive, Nancy is spooked. With all the scary noises the Clue Crew keeps hearing and the creepy shadows that seem to be lurking, it seems like the studio is haunted Is it just Halloween jitters...or are there really such things as ghosts?