From the bestselling creators of Unicorn and the Rainbow Poop comes this gorgeously sparkly and fun festive picture book! When Unicorn receives a letter from Santa, she’s super excited. But – oh no! – Santa’s too poorly to deliver presents. Christmas is ruined! Or is it? Because our favourite unicorn has a super rainbow-poop-shaped surprise that might just save Christmas for everyone. Includes: The North Pole. lots of elves, presents, a super sleigh ride and RAINBOW POOP!