In this story inspired by Jules Verne's "20,000 Leagues Under the Sea," Ana Dakkar, a freshman at Harding-Pencroft Academy, a five-year high school that graduates the best marine scientists, naval warriors, navigators, and underwater explorers in the world, makes astounding discoveries about her heritage and puts her leadership skills to the test against deadly enemies from a rival school.

When the Octonauts meet a giant goldfish who can't stop growing, they find themselves on a quest for a mysterious hidden ocean.

When the Octonauts, a team of eight animals that explores the ocean, help a lonely monster, everyone learns the value of friendship and individuality.

When the Octonauts, a team of eight animal underwater explorers, meet a frowning fish, they try their best to make it smile.

The Octonauts are a crew of eight talented adventurers who love to explore the great big ocean. One day, Tunip wonders where he and the rest of the Vegimals originally came from. The Octonauts set off on an exciting mission to search all the wonderful and unusual underwater habitats. Will Tunip ever find somewhere truly special to call "home"?

"In the third and final installment of this action-packed middle grade series, a twelve-year-old descendant of Jules Verne's famous antihero must face down giant sea serpents and solve a centuries old mystery, armed only with his wits, his friends, and his Nemotech submarine"--

Dive into adventure with the favorite underwater explorers, the Octonauts! Join brave Captain Barnacles, daredevil ex-pirate, Kwazii and medic Peso Penguin, along with the other Octonauts as they explore the world's oceans, rescue the creatures who live there and protect their habitats above and below the waves!

Gabriel Nemo has never been your normal, everyday twelve-year-old. As a descendant of the famous Captain Nemo, he's determined to use his Nemotech legacy for good. He and his best friends Peter and Misty spend their days studying at the elite Nemo Institute and in their spare time, run rescue missions in Gabriel's submarine The Obscure. But when a mysterious organization using advanced technology attacks the Institute and kidnaps Gabriel's mother,...

"La Academia Harding-Pencroft no es un instituto normal: de sus clases salen los mejores exploradores submarinos y los navegantes más prestigiosos del mundo, que compiten en condiciones extremas divididos entre las casas Delfín, Cefalópodo, Orca y Tiburón. Ana Dakkar, una brillante estudiante de primer año, está preparada para la misteriosa prueba de final de curso... hasta que una terrible tragedia cambia su destino para siempre. En una carrera...

"Two lovable mismatched rovers are back for another adventure, this time on an oceanic planet! Organized, careful Rover and impulsive, excitable Speck are ready to set off on their next dangerous, hazardous, mysterious mission: a trip to Unexplored Planet K2-18b. Adventure is underway as they splash down onto the watery surface of this world and get to know the locals. Before long, the two rovers find themselves on a new mission: to help two Spikey-Spikes...