Jimmy, Colby, and Sam continue to search for Alice in Volume 2. The friends' distaste for math slowly turns to enjoyment as they respond to the 20 great mathematicians and proceed, gate by gate, toward their friend. More advanced aspects of math appear in this volume. As the friends progress through their adventure, kids learn about primary numbers, addition and subtraction, Fibonacci's Number, more about rational and irrational numbers, and even more math. Colorful art and an exciting story make learning math fun for these characters - and for readers.