When Ruka was younger, she saw a ghost in the water at the aquarium where her dad works. Now she feels drawn toward the aquarium and the two mysterious boys she meets there, Umi and Sora. They were raised by dugongs and hear the same strange calls from the sea as she does. Ruka's dad and the other adults who work at the aquarium are only distantly aware of what the children are experiencing as they get caught up in the mystery of the worldwide disappearance of the oceans' fish. -- VIZ Media

Ruka, whose father works in an aquarium, and her two friends hear strange calls from the fish in the sea, while the adults, unaware of the children's experiences, try to investigate the mysterious disappearance of the ocean's sea life.

A Child of the Sea is the true story of Jimmy Cornell's daughter sailing around the world on the family's small yacht from the age of 7 to 14, based on Doina's diaries, letters and memories. From 1975 to 1981 the Cornell family visited 54 countries, sailed more than 68,000 miles, and travelled about the same distance overland. The story is told from Doina's point of view, although the main part of the book focuses on the family's three-year stay in the Pacific when she is aged between 10 and 13. Child of the Sea is unusual in that it gives a glimpse into a life that most young children couldn't imagine, swimming, diving and playing the days away in deserted anchorages; visiting some of the most beautiful islands in the world; falling in love with the sea in all its ever-changing moods, from balmy trade wind ocean passages to the treacherous breakers that crash onto tropical reefs, and taking a full part in sailing and handling the yacht on passage. The book also tells the story of a girl's coming of age in the South Pacific, understanding different cultures and values, and experiencing at first-hand how people judge each other depending on the colour of their skin - from the time on Easter Island when tourists mistake Doina for a Polynesian girl, to her and her brother's hostile prejudiced reception back in an English school at the end of their journey. What do children need to grow up happy and healthy? Security with their family; an element of risk; freedom to explore the world; openness to other peoples and cultures; closeness with nature and the elements and an appreciation of the environment and our finite resources. The sailing life offers all this and more, and this book captures it all.