When Benny Alden sees a set of keys that were lost at the library, he follows clues to find the owner.

Before she can start a new life in Virginia Beach, Carina Channing receives a mysterious key from her imprisoned father--a key her mobster uncle died trying to obtain. Following cryptic notes left by her father, Carina and her boyfriend Navy SEAL Jay Wellman go in search of the lock the key will open--but every step they take grows more perilous because there are others who will do anything to find the hidden location first.

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.

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.

To achieve her dream of attending Princeton University, sixteen-year-old Lily Carter accepts the challenge of seeking the Ivy Key to a magical realm, where she finds herself caught in a power struggle between two worlds, with her family at its center.

Clara is searching for the special key to unlock a box from her late mother. Inside that box is a priceless item that her mother left for her. During her godfather's yearly holiday party, Clara almost gets the key but it disappears. She embarks on a quest into a mysterious world which has four different realms: a snowflakes realm, flowers realm, sweets realm, and the challenging realm where the key is. As she undertakes her journey she meets different...

Clara is searching for the special key to unlock a box from her late mother. Inside that box is a priceless item that her mother left for her. During her godfather's yearly holiday party, Clara almost gets the key but it disappears. She embarks on a quest into a mysterious world which has four different realms: a snowflakes realm, flowers realm, sweets realm, and the challenging realm where the key is. As she undertakes her journey she meets different...

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?