One day, while skipping their lessons at the Academy, Fishlegs and Meatlug discover a strange, glowing, color-changing gem. Soon several more are discovered. But when Hiccup realizes that the gems are actually the eggs of the dangerous Changewing dragon, everyone must scramble to retrieve the eggs before they hatch and destroy Berk.

"DreamWorks Dragons : The day of the dragon egg"--P. 1 of Cover.