Peppa Pig discovers the magic of friendship in this fantastical storybook!Peppa and Suzy Sheep are very excited to wear matching costumes for Penny Polar Bear's magical creatures party, but when the two friends can't decide which are more magical--unicorns or mermaids--it takes a little teamwork and a lot of costume changes to help them figure out the most magical thing of all. Join them on their magical adventure in this fantastical storybook!