The Party Wish

Imagine if your baby sister could make wishes come true… Flick has just found out her little sister has a special gift. Birdie has wished for a super-fabulous unicorn party and it has magically appeared in their backyard! There’s a rainbow slide made out of sour straps (surprisingly slippery), a ball pit full of marshmallows (never sticky), and a real-life unicorn (that poops cupcakes, of course).
How can Flick stop the nosy next-door neighbour, Mrs Mortlake, finding out about her sister’s magical gift when there’s a super-fabulous party going on?