Loved this book! Such a fun concept. When a younger sibling needs help, she puts out the call and the League of Littles come to the rescue. In this first installment of what is sure to be a hilarious series, Lexi, Mo, and Eli get their first mission to find a missing pet of an Oldest sibling. But turns out the Band of Bigs has set a trap. Can they find the pet before the BOBs get them in big trouble?

I love how the author has taken a very real rivalry between siblings and turned it into an agent and spy-themed story (including the Middles and Onlys Guild). It's just so perfectly fun. But more than just fun romp, it has themes of friendship, working together, recognizing each others talents, and working hard to achieve a goal.

The art is fun, and expressive, and perfect for the story. I loved the extras at the end, with the top secret files for each of the agents. Kids will gobble this series up!