After an earthquake destroys California and a tsunami wrecks the luxury cruise ship where he is a summer employee, high schooler Shy confronts another deadly surprise.
While on a cruise with their grandfather, the Alden children help discover who is behind the mysterious troubles of the ship--disconnected phone lines, engine trouble, a man overboard--and still have fun sightseeing, eating, and swimming.
A young man joins an ocean cruise on which some bad-mannered pigs create disaster while on board, and when he returns home, a great surprise awaits him.
After her sea lion is kidnapped by a cruise ship and her new writer friend leaves without an explanation, Nim, a young girl who lives with her father and animal friends on a remote island, sets out to reunite her family and winds up in New York City.
Mallory's two best friends' parents are getting married, and Mallory fears that she will become a third wheel when Mary Ann and Joey become stepbrother and stepsister.