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.

On prom night in Lovecraft, Dodge, having taken over Bode's body and in possession of all the keys, prepares to release his fellow demons.

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?

Puzzled over what to write for a creative writing contest, Abby finds inspiration when her dog digs up an old key on a gold chain and she sets out, with the help of Mrs. Mackenzie the public librarian, to solve the mystery of the golden key.

At the age of eight, Michael survives an act of violence so horrific that the local press dubs him "The Miracle Boy." An orphan now, and no longer able to speak, Michael soon discovers the one thing he can do better than anyone else. Whether it's a locked door with no key, a padlock with no combination, or even an 800-pound safe . . . Michael can open them all. It doesn't take long for him to become a hot commodity, and the best "boxman" in the business....

This time Cleo, Evan, and Ms. Crowley (who, it turns out, is the missing Ms. Hilliard's sister) find themselves in a confusing fantasy book, caught up in a war with wizards, elves, trolls, and the mighty Golden Dragon--and while they manage to find their missing librarian, their quest does not end there.

In their third trip through the enchanted library, Cleo and Evan land in "The Werewolf's Curse" where Evan is promptly bitten by a werewolf, and the two need to find the cure--and the next key--before the full moon rises and Evan becomes stuck in this horror story forever.

Fourteen-year-old Simon, an orphan being raised by his prankster grandfather and his cruel housekeeper, suddenly remembers long-forgotten childhood memories and finds a key in his pajama pocket that will aid him on his quest to save Emogen, a hidden realm connected to Earth, from certain destruction.

In this collection of three stories, Spot and his friends go on a picnic; Spot finds a key and looks for the lock it opens, and Spot keeps his favorite toy with him at bedtime.

Since speaking to Siloé, Nola has learned a lot about her own mother and the history of Pandorient, but there are still questions and when Nola finds a strange key she returns to the other world to find out what the key will open--but nobody knows what might happen if this particular door is unlocked.