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!