Teens Jack, Marco, Aly, and Cass begin a quest to find seven pieces of Atlantis' power that were hidden long ago and that will, if returned to Atlantis, save them from certain death due to the genetic abnormality that also gives them superior abilities.

Journeying to the ancient city of Babylon when Bhegad tracks down Marco, the companions face a daunting choice involving a dire trap and a long-lost figure from Jack's past.

After Marco's betrayal, Jack McKinley and his friends must face their own demons and engage in a battle with foes long gone.

Artemis has committed his entire fortune to a project he believes will save the planet and its inhabitants, both human and fairy. Can it be true? Has goodness taken hold of the world's greatest teenage criminal mastermind? Captain Holly Short is unconvinced, and discovers that Artemis is suffering from Atlantis Complex, a psychosis common among guilt-ridden fairies - not humans - and most likely triggered by Artemis's dabbling with fairy magic. Symptoms...

"Dabbling in fairy magic has led Artemis Fowl to develop the Atlantis Complex (aka multiple-personality disorder). And now, with the subterranean city of Atlantis under attack from vicious robots, he is too nice to be of use to anyone. Can Holly get devious Artemis back before they strike?"--

Fifteen-year-old Matt and his new friend Robin search the globe to retrieve an ancient code--rumored to have brought down the ancient civilization of Atlantis--from the hands of a madman who is bent on destroying the modern world.

"When Riley and her family are stranded on the mythical island of Atlantis, they'll have to uncover its secrets in order to find a way home"--

When Paulina, one of the Thea Sisters, finds a strange blue-skinned boy unconscious on the beach, the sisters set out to solve the mystery of who the boy is and where he comes from--and how to return him to his home.

Atlantis is under attack by the evil Ocean Master, and it is up to Aqualad, the Mermaid Nicoletta, and their superpets Fluffy the goldfish and Betty the beluga to defeat the supervillain.

Scooby-Doo and the gang are on the island of Bimini in the Bahamas to investigate a report that the lost city of Atlantis has been found--and the reader must choose the path their investigation will take, and how they will respond to the dangers that lurk underwater for anyone who seeks to find the lost civilization.