YIPPEE! It's the holidays! Time for glorious summer days and fun with friends.Coco's mum is still travelling, but she arranges the BEST surprises.One surprise is in a box delivered by Coco's best friend, N.The next surprise is an invention called the Skip Back Machine. What does it do?And the biggest surprise is tickets to a concert by Coco's favourite pop star, Prince Louis!But . . . what if N isn't allowed to go? Coco has a big decision to make . . .