The amazing egg

"It's time for the Glendragon show-and-tell, and Mike wants his presentation to be very knightly! His dragon friends Sparkie and Squirt each give Mike something special for his show: a giant tooth from Squirt, and a small, boring egg from Sparkie. When Mike tries to hide the egg backstage instead of showing it, Sparkie wants to prove that the egg is truly amazing ... but they'll have to find it first!"--Publisher's description.