Drake and the other Dragon Masters help Wildroot, a Flower Dragon whose home is in danger, find his Dragon Master Oskar after Oskar's identity is revealed to them by the Dragon Stone.

George and Harold, and their doubles, Yesterday George and Yesterday Harold, have a good thing going. Two of them go to school, while the other two hide in the tree house and play video games all day-then they switch! But when their malicious gym teacher, Mr Meaner, creates a method of mind control that turns their fellow students into attentive, obedient, perfect children, the future of all humanity will be in their hands!

When Ella Mentry School invites a local dentist to speak on National Dessert Day, A.J. and his friends uncover the dentist's secret plot to promote cavities for more business.

The monstrous Turbo Toilet 2000 is determined to take revenge on George, Harold, and Captain Underpants.

New lunch lady Ms. Hall is obsessed with healthy food and she makes it her mission to get A.J. and the gang to eat more vegetables, but they won't take this sitting down.

Eva decides that warning all the animals in the forest about the approaching storm is a perfect project to prove herself worthy of taking the Owl Oath, but when she stops to help a lost pony and they get caught in the storm, they have to take shelter in a cave, and end up helping each other to stay brave.

One day eight-year-old Auggie Pound, the caretaker of the rare animals in the Fabled Stables, ventures into the swamp to save a new rare creature, the wisp.

"Creepy! Crawly! Criminy! Stink is bonkers about most scientific things. But dangle a spider in front of him and he goes berserk! Stink is so freaked out by spiders that he can't read about them. He can't look at them. He can't think about them. And he for sure can't touch them! Stink has arachnophobia (a fear of spiders), and he has it bad. But when a hairy backyard emergency arises, Stink is forced to face his fear--and eight beady eyes--head-on....

Iggy is delighted when Ada Twist's Aunt Bernice inherits a mansion featuring his favorite architectural periods, but unless the Questioneers can find its missing antiques, the house may be lost forever. Includes information about Art Deco and Art Nouveau, facts about unusual cats, a recipe for ice cream, and a biographical note on Ida B. Wells.

While trying to rescue their friend Griffith, Drake and Rori team up with a boy named Llew and try to gain the trust of a Crystal Dragon.