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.

Jack and his friends desperately search for the rest of the lost Loculi and confront the armies of Artemis in order to rescue Aly, who has been pulled back into Atlantis by King Uhla'ar.

Riley thought she was through with Atlantis, but when the Atlanteans who came back with her (and are currently living in the basement) become gravely ill it becomes clear they must all return to Atlantis--and face the enemies they made during their escape.

"Tim, Belinda, Ferkle, and Princess Grace were headed to their doom...until a mythical sea creature came to their rescue. But in exchange for saving their lives, Princess Piscina needs them to bring back something very precious to the Kingdom of Merland: the trident of her father, King Neptuna. To do so, Tim and his friends must embark on a very dangerous journey across the Sea of Terror to the incredibly amazing city of Atlantis. On the way, they'll...

The young thief Promi and the forest girl Atlanta battle evil and in the process bring about the creation of Atlantis.

Promi and Atlanta continue the fight against the evil spirits and their mortal counterparts on the island of Atlantis.

Twelve-year-old Jack Pease and his partner, Trudy, operatives of the Ministry of Strange, Unusual, and Impossible Things, investigate odd things happening at Belfast's aquarium.

Eureka, a girl whose tears have the power to raise the lost continent of Atlantis and who travels across the ocean with Cat, her family, and Ander, the gorgeous and mysterious Seedbearer who promises to help her, has the chance to save the world might have to give up everything--even love.

"Life on Atlantis has always been unpredictable. But lately, the Community has finally started to feel like the stable home Riley hoped it could be--until the weather becomes anything but stable. After three Red Moons within a month, the latest of which brings an earthquake, it's clear that something is wrong. But what is causing this change? In addition to creating chaos, the storms are also damaging homes across the territories and escalating tensions...