After accidentally killing a dragon, Wiglaf hopes his friends at Dragon Slayers' Academy will be able to help him prove himself a hero when he faces that dragon's mother, Seetha, the Beast of the East.
Wiglaf and the other students of Dragon Slayers' Academy take a class trip to the Dark Forest into the Cave of Doom, which supposedly contains the gold of the dragon Seetha.
When the headmaster of the Dragon Slayers' Academy hears that Princess Belcheena will pay the matchmaker who finds her a husband, he decides that Wiglaf is the perfect candidate.
Wiglaf wins a contest that brings Sir Lancelot to the Dragon Slayers' Academy for a day, but when Wiglaf's friend Erica suspects that Lancelot is not who he claims to be, trouble ensues.
Wiglaf and his friends Angus and Erica find themselves teamed with the obnoxious Bragwort to represent the Dragon Slayers' Academy in an unevenly matched contest at the All-Schools Brain-Power Tournament.
Wiglaf faces the double embarrassment of having his wacky parents visit Dragon Slayers' Academy on Parents Day and starring in the school play as the brave but small knight, Sir Tinybottom.
While Headmaster Mordred is trying to impress a new student, who he believes to be the first female at Dragon Slayers' Academy, the ghost of one of the school's founders besieges the halls seeking his stolen gold.
Upon superstitious headmaster Mordred's orders, the returning students and new lasses of Dragon Slayers' Academy deck themselves in lucky charms on Friday the thirteenth, but luck may not help when a wicked dragon arrives seeking revenge.
A ransom note received at Dragon Slayers' Academy sends Wiglaf and Angus to the rescue of the supposed victims but upon arriving at Keep Away Mountain Cave, they discover that an elaborate prank has put them in danger.
Wiglaf and his classmates come to appreciate their elders when they learn that only a group of retired knights can save their school from the world's oldest living dragon, Grizzlegore--if they can get back in shape in time.
When the gold-hungry headmaster of Dragon Slayers' Academy realizes that he can make money running a summer camp, Camp Dragononka is born, but there is something not quite right about the activities and the setting.
After a summer at Camp Dragononka, Wiglaf returns to school to find himself tormented by his energetic younger brother Dudwin and a troublesome troll with a sense of humor.
Wiglaf and his friends are on a mission to rescue Worm, the dragon they have raised from an egg, and are surprised to learn that the captor is not a gang of dragon slayers, but rather a young giantess who wants to keep Worm as her house pet.
While Wiglaf and his friends search for their dragon, Worm, DSA's money-hungry headmaster, Mordred, is turning the school into a casino, rushing all of the students through graduation and out on their own.
