"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." --

When Frank accompanies Eugenia Lincoln on an errand to get a key duplicated, he is surprised (and worried) to be presented with not only the original key and the copy, but also a mysterious third key. Will Frank be able to step forward bravely, face his fears, and deal with the unexpected key -- and with his worsening worries?

Alfie accidentally locks his mother and baby sister Annie Rose outside and can't reach the latch to let them in. Soon the whole neighborhood is involved in getting the door open.

Neither Cleo nor Evan like the new school librarian, Ms. Crowley, but they are very curious about where she disappears to at the back of the library, so one day they follow her--and find a secret door, a magical library full of locked books, and a letter from the previous librarian telling them that she is trapped somewhere between the covers of one of the enchanted books, and they must travel through the stories in order to save her.

This time Cleo, Evan, the evil Mr. Locke, and his two trolls have all been transported to the Titanic--and if they do not find and save the priceless jeweled copy of the Rubiyat before the ship hits the iceberg and sinks they may all be lost at sea.

When Evan and Cleo sneak into the enchanted library at night they find that Locke has already forced his way into a book, and when they follow they find themselves in a plane that promptly crashes into the Amazon rainforest--and with the help of a boy named Gabriel, (and a friendly sloth) they have to survive the jungle and find the golden statue that is the next treasure in their quest before Locke gets his hands on it.

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.

"No case is too hard for Nickelodeon's Rusty Rivets! When the key to the city goes missing, everyone assumes Rusty's Botasaur buried it. But it's up to Rusty and Ruby to dig up the truth! "--

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.

Sofia buys a skeleton key from spooky store Frightville that promises to open any lock. There's a mystery trunk in the attic of the big, old house her dad is turning into a bed-and-breakfast. Sofia is dying to see what's inside. To her delight, the key works on the trunk! But her joy quickly turns to terror when it seems like something may have been released from the trunk. She hears odd noises in the middle of the night and sees strange things around...