Turn the wheels on each page to fill in the words and images in this unicorn-themed board book that's perfect for birthdays and for adding some sparkle to a unicorn lover's day! It's Unicorn's birthday! Everyone is having fun, but Unicorn wishes that it would stop raining so that they can have the party outside. Will Unicorn's wish come true? Kids will laugh out loud as they turn the wheels on each page to fill in silly words and images. At the end of the book they'll find a special, sparkly surprise! Includes five double-sided wheels, including one on the cover!