"The Arithmechicks and Mouse are excited to be traveling to the city--even more so when they learn that Mama has planned a secret scavenger hunt, culminating in a mysterious 10th stop! But when one chick wants to be the best, he starts disrupting the plans. How can these frustrated chicks (and Mouse) show their sibling that it's better to work together? This adventure with the Arithmechicks is made up of math, a mystery, and, most of all, humor and heart." -- Publisher marketing.