Life is never boring when your best friend is a unicorn! The latest installment in this bestselling series is full of mischief, magic and adventure as well as an important reminder to always stay true to yourself. School's out, so Phoebe and her unicorn best friend, Marigold Heavenly Nostrils, have the entire summer to play games, visit the pool, and even go camping. Unicorn horns are excellent utensils for roasting things over the campfire, too, even if Marigold prefers toasted apples to s'mores.