Marcus, Prince of Gorebreath, has a plan – he wants to take Gracie Gillypot on an adventure for her birthday, preferably to see a dragon or two. But then he discovers that there may be a dragon's egg somewhere within the Five Kingdoms and, what's more, it could be due to hatch at any minute! A newly-hatched dragon would be highly dangerous in the wrong hands and the race begins to find the egg before the zombies, werewolves, deep witches and sorcerers get to hear about it. The tiny dragon hatches under the watchful eye of its parents, and all three fly off into the sunset ... just as Gracie remembers that this is the day of her birthday.