Nim lives on an island with her father, Jack, a marine iguana called Fred, a sea lion called Selkie, and their friend Alex Rover, the adventure writer.
Nim's island is the most beautiful place in the world, and she wouldn't swap it to live anywhere else. When Jack invites a group of scientists to visit, they bring their children as well.
But two of the scientists have plans other than studying algae... By the time Nim discovers what they really want, and what they will do to get it, the children are in grave danger. And so is the island!
Nim must choose between saving a natural treasure and saving someone's life.
Nim is excited that her friend Edmund is coming back to her island with some scientists interested in discovering a breakthrough sustainable bio-fuel.
But when two of the scientists fall mysteriously ill on the evening before leaving for the island, Dr Lance Bijou and his wife Dr Leonora Bijou take their place.
However, Nim soon discovers that they have a devious ulterior motive for being on the island. Can she save her island and her friends?
With the help of Selkie the Sea Lion and Fred the Iguana, surely they can stop this evil couple.
An exciting adventure, full of suspense, that 8-12 year olds will love.
This is the third book in the hugely popular Nim series, but it can easily be read without previously reading the others.
Reviewed by Rob