Lovely cover, very gorgeous. Intriguing and different plot. Its content is not usual nor the subject is common as is its place of development. It is interesting to know why the world they live alone is water, what causes or reasons give life to characters who have died for effects. It is not clear if it is all science fiction, fantasy or suspense that makes this book get my attention. What does the sister discover after thinking for a long time that her sister is murderous and that really happened.