Desperately searching for the other Concentrators that are fatally disrupting Earth's orbit, Eleanor and her companions are labeled as terrorists by G.E.T. forces that would eliminate all but a few select people.

This fictional journal is from the year in which Galileo constructed his own telescope and began to record his astronomical discoveries. Includes additional nonfiction biographical information.

When Athena's parents suddenly disappear, she calls on her friends on the Kid Squad to help figure out what happened--and uncovers the surprising connection between her parents, a biological weapon called the Age Bug, and their old enemy Dr. Alowishus Cobalt.

Stitch Head, the Mad Professor's first creation, has long hidden in the shadows of Castle Grotteskew--but now that the newest monster, the Creature, has decided that they are best friends, and the evil Freakfinder wants to kidnap the monsters for his freak show, Stitch Head finds himself cast in the role of hero.

When the testing of a nuclear-powered invisibility device goes awry, Captain Rudolph Von Dorn is transformed into the evil Captain Cyclops, blowing up ships and islands at will--and the Kid Squad, with the help of Von Dorn's daughter Jenny, is called upon to reverse the effects of the accident and save the world.

Rafi Bywater is unlike anyone else. The people in his village don't trust him because he spends too much time in an abandoned dragon lair. When a stranger, Mister Flitch, accuses Rafi of being “dragon-touched,” Rafi sets off to discover the truth about dragons -- and about himself. On his journey, Rafi befriends a brilliant scientist, Maud, who has secrets of her own. Together they search for dragons while escaping from a dangerous dragon hunter,...

When the Mad Professor suddenly leaves Castle Grotteskew, Stitch Head, the Creature, and the girl Arabella suddenly find themselves in charge of the Castle but an innocent game of pirates leads them to a plot by the evil Freakfinder, who still wants to control the Professor's monsters.

When a lonely, eccentric old man decides to become a mad scientist and try "this Frankensteining business," two brothers, Jake and Derek, become unwitting participants in his experiments.

The ghost of the evil Mawley Crackbone is haunting Stitch Head, whose patchwork heart used to belong to Mawley--and when he convinces Stitch Head to yield to him and sets out to use the Mad Professor's latest creation to destroy the town, it is up to the Creature and Arabella to save their friend.

This time fourteen-year-old J.D. is looking for the family of the contributor of his dad's large intestines, and the search leads him to Florida, and his "cousin" Gloria, bodyguard of the Vampire--but when she is wounded protecting J.D. from Frankenstein's daughter, he finds himself obliged to protect the Vampire from the Invisible Man.