With her adventurous sister, Meryl, suffering from the the Grey death meek and timid Princess Addie sets out to find a cure.

The evil wizard Maldred has stolen the gold and silver keys which will allow him to release the Naga, the powerful earthquake dragon at the center of the earth--so Drake and several of the other Dragon Masters travel to the Naga's Temple in the Dragon Islands, to try and stop Maldred, and prevent him and the earthquake dragon from destroying the kingdom.

All nerdy magician Cucumber wants is to go to school, but destiny has a different plan, sending Cucumber and his sister Almond on a quest to find the Dream Sword, the only weapon capable of defeating the Nightmare Knight.

Diego is under the spell of the wizard Maldred who wants to control the Naga, an enormous dragon that lives deep within the Earth, and plans to use Diego to steal the two keys necessary for that purpose; the first key is guarded by Argent, the silver dragon, and Jean his dragon master, so Drake, Bo, Carlos, and their dragons travel to Gallia to try and stop the theft and break the spell on Diego.

Having taken the silver key, the evil wizard Maldred is after the gold key, which is protected by the Gold Dragon and her Dragon Master, Darma, but by the time Drake and Rori get there, Eko and her Thunder Dragon have seized the gold key--so together the three dragon masters, follow her through the portal to Maldred's tower, but without their dragons will they be able to stop Maldred and his deluded helper, or even save themselves?

The dark magic the dragons encountered in their first adventure has made Ana's sun dragon, Kepri, sick and Drake's earth dragon, Worm, teleports the himself, Kepri, and the four young dragon masters far away from the castle in search of a cure--but the threat of the dark magic still remains.

After Nightlight, a Guardian, transforms into Jack Overland Frost, he is entrusted by Father Time with a great secret, but he must revisit his past if he is to understand the secret and defeat an old enemy who threatens the world with destruction.

The city of Remus is being torn apart by a duel between two wizards, and Drake, Petra, and Griffith have traveled there to assist a blind dragon master, Tessa, in sorting out the situation; using the sound dragon's unique power to manipulate sound waves, the dragon masters retrieve the Power Crystal which is embedded inside an unbreakable rock, but will it be able to absorb the cloud of uncontrolled magic that is threatening the city before it is...

This is a story about magic, if you like that kind of thing. It is also a story about a ghost with amnesia, an unpopular fairy, an ungrateful town, and a wise and helpful raven (who happens to be a pretty good storyteller). But mostly, it is about a friendly little wizard who lives inside a big hill and really, really, really wants to be a hero. His name is Gumluck, and he is a bumbling noodlehead.

The prime Dragon Stone seems to be dying, and that means that the connection between the dragon masters and their dragons is also fading, so the six dragon masters must located the hidden stone, and learn what is causing the problem before their telepathic connection is completely gone.