Ricky Ricotta loves his Mighty Robot, but sometimes it's hard for a little mouse to have a best friend who's so BIG. One night, Ricky makes a wish: if only his Mighty Robot had another friend who was his own size! Little does Ricky know, his wish is about to come true. Evil Uncle Unicorn has travelled all the way from Uranus with a mean and nasty plan...

 

This is number 7 in Ricky Ricotta .

There are 128 pages in this book. This book was published 2012 by Scholastic .

Dav Pilkey is the talented author of this hugely popular series. He created the first Captain Underpants stories as comic books when he was still at elementary school!