"The last thing highly organized Olivia Schwartz wants to do the summer before her senior year of high school is go on a cruise with her parents and younger brothers, so when Olivia meets charming, exciting Sebastian, she feels like she can have fun, but when past secrets come to light, Olivia must face the long-ignored truths about herself, Sebastian, her older brother's death years before, the past she thought she understood and the future she's...

"Berkeley and her best friend, Garth, live on an old cruise ship, scavenging for supplies from the drowned cities left behind on the ocean floor after the sea swallowed up all the land. They think they've seen every kind of aquatic creature, but they never expected to find sea monsters... After awakening a Hydra, Berkeley and Garth are sent to live on a submarine, where they study and hunt sea monsters. But the Hydra wants revenge on their home ship--and...

When seventeen-year-old friends Liv and Will are accepted in a semester-at-sea program, they are excited to spend six weeks aboard the luxury cruise ship The Eos, but after Will disappears the first night, Liv grows suspicious that something sinister is lurking below deck.

"When Izzy meets Jade on a cruise to Bermuda, her new daredevil friend turns Izzy's boring family vacation into the trip of a lifetime. Until Jade goes missing. The investigators claim Jade fell overboard, but Izzy knows better. Her friend had secrets--secrets that might have gotten her killed. As Izzy digs deeper into Jade's disappearance, she realizes that someone doesn't want her to find the truth. And if she's not careful, Izzy might not get off...

While on a mission aboard the The Emperor of the Seas, Ben Ripley faces off against his arch enemy, Murray Hill, on the high seas and quickly finds himself in hot water as things take a dangerous turn.

The Kingdom Keepers have their hands full when, during the inaugural cruise of the Disney ship, Fantasy, to exotic locations, they discover that the Overtakers have infiltrated the cast, stolen a journal that belonged to Walt Disney himself, and plan to unleash a powerful evil, the Chernabog.

The Kingdom Keepers and their friends discover that Maleficent and the Overtakers are plotting a catastrophic event that could have repercussions far beyond the world of Disney unless they solve a puzzle that is revealed during the Disney Cruise Line's inaugural passage through the Panama Canal.

Mr. Penguin is in for some well-deserved rest and relaxation, but when a series of odd events infiltrates the glamorous parties aboard the cruise ship, Mr. Penguin cannot help but feel that something shifty is happening on board.

"Inspector Cruz and her daughter Alba have boarded the Goelan ready to enjoy a well-deserved vacation. However, the first night on board, a strange event shakes the entire ship: the valuable emerald of the Duchess of Florinata has disappeared! Alba and her new friend Oliver will debut as detectives investigating the different families of passengers"--Transated from the back cover.

"Teen sleuth Sammy Keyes solves a classic locked-room mystery aboard a cruise ship"--Provided by publisher.