Maisie is having a party at the Aqua Adventure Pool. There's a gigantic waterslide, and there are loads of fun games planned. But when Holly and Rose arrive early, the Party Poopers are already there, causing havoc. The twins need the help of the Little Sparkles, and they need it quick...Hurray, they're here! Tikki the yellow kitten, Peppy the light-blue puppy, Bubbles the pink bunny, Princess the white pony and Tubbs the rainbow-coloured turtle - and they're going to make the party perfect!