Jake, Becca, Ryan and Harriet are kidnapped by Dr Crookshanks and his accomplice, Professor Kaufman. Against their will, the gang have to jump 'into' the world’s best known adventure stories to steal important artefacts, using an incredible invention called the Nautilus. If they don't get what Crookshanks wants, what will he do to their parents? And what will Becca do without her dad's credit card?

Crookshanks explains that in order to keep their families safe, the children must bring him back the actual treasure map from Treasure Island. Their parents’ lives are in the hands of a complete madman! The Booksurfers have little time to argue. Before they know it, they are thrown into Treasure Island; they’re talking to Jim Hawkins, running away from pirates and risking their lives to get their hands on that map!

Ever wondered what it would be like to not just read a book, but actually experience it? Throughout these books you'll find something rather ingenious: hyperlinks. They're pretty easy to spot; look out for an underlined word or phrase or sentence. And whenever you see one, you can just click on it, and - KA-POW! - you'll be zipped into the actual book the Booksurfers are exploring at the exact point they are discovering it! Have fun tagging along; you never know what story you'll end up in next...