Humans must return the power source back to the Kurbs every year in order to prevent the city from freezing over. The power source is always hiding somewhere in the city and this year it's hiding in the shape of a token. Two kids named Carlos and Estella must figure out how to save the city with this token.

When I first read the synopsis, I wasn't sold and to be honest I was a little confused. I was nervous that it would be hard to follow, but once I started reading it, I couldn't put it down! Although the art wasn't my favorite, I think it was still an enjoyable read. Surprisingly, I liked the storyline way more than I thought I would too. It was very easy to follow and it had a unique premise.

It's a good adaptation of Avi's book. Colorful with expressive characters. It's it more middle grade or tween readers.