After centuries of the same old argument about which is better, the Word Dragon and the Math Dragon have finally agreed to some outside help--not that they think it will do any good. Eli and Grace will try their best to stop the dragons from arguing so the two mythical creatures can get back to helping kids on their junkyard adventures. After an eye-opening game of dragonball--a game similar to baseball, but with huge boulders and powerful tails instead of a bat and ball--Harvard suggests a quest to find the smigitu, a legendary magical object. Both dragons are immediately intrigued, since the "smigitu" really does sound like the Single Most Incredible Gizmo in the Universe. Eli and Grace must travel to the dragons' home and go deep inside the mountain, where they must solve a series of math riddles if they're ever going to escape. Get ready for a mathematical adventure filled with dragons, treasure, and lots of fun surprises! Don't miss the teacher's favorite, parent-approved and kid's choice series, .