Key had a very happy life on a farm - until her ninth birthday, when she lost her mom and dad, was changed into a vampire, and was ushered to the City of the Dead where she was thrown into the Dungeon of Despair. Key is now imprisoned for the rest of her immortal life in darkness, loneliness, and emptiness. But hope is not lost when Key is befriended by a ghost, a witch, and an immortal puppy.

Key the Steampunk Vampire Girl has escaped from the Dungeon of Despair, but now she must race through the Necropolis to the Tower Tomb of Time before Old Queen Crinkle can rewrite history. With the aid of Mr. Fuddlebee the ghost and Miss Broomble the Witch, Key and her immortal puppy, Tudwal, must drive a MotorHog, ride a Hobbeetle, and cling to an Umbracopter without getting lost in time, where she will have to confront an old enemy and a long forgotten past.

Good is a seven-year-old girl who was adopted by absolutely ghastly parents. One night, after wishing on hundreds of shooting stars to become a queen, an elderly ghost appears to grant her wish in the most unexpected way, making her queen of the goblin kingdom. Yet what seems like a curse becomes a blessing when she meets seven goblins on their way home. They lead Queen Good to the goblin kingdom until stopped upon discovering that a mysterious enemy has destroyed their homeland completely.

Key the Steampunk Vampire Girl has been thrown into the Dungeon of Despair and lost in the past through the Tower Tomb of Time, and now she lives in a magical mansion that floats beneath a hot air balloon. On the outside it looks ordinary while the inside has numerous bewitched hallways like a maze and countless enchanted doors that can lead anywhere in the world! But when two villains take over the Floating Mansion, Key works desperately to get it back with the aid of old friends.

The Magic Library is finally reopening its long-locked doors. But it needs four librarians. To become one, four magic books need to be found. Surprisingly, four homeless people find them. One is called Peter Butterpig, a bright-pink pig with great big butterfly wings. Two others are old robots called Sir Copperpot and Uncle Glitch, who are falling apart with failing memory banks, yet they never forgot to take care of the fourth.

Everyone in New Orleans thinks the Button family lives in a spooky old haunted house - except the three Button children. The bumps in the night are perfectly normal to them until one day when an elderly ghost appears to investigate this mystery with his mechanically enchanted umbrella. Soon he discovers a world behind their walls, a world that takes him and the three Button children down to a village far below their home, a village of jack-o-lantern houses, a village of scary creatures, a village called Halloween Hollow.