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About this ebook
Ahoy! You're an accidental pilot aboard a submarine that's sinking fast! Solve the puzzles to take control and navigate safely back to land. Devised by an expert on brain training, these mental gymnastics—and a friendly dolphin—will see you through your ocean adventure! You can't skip a puzzle, but there are hints to help and full answers to get you on your way.
Ages 9-12
About the author
Dr. Gareth Moore is the author of a wide range of puzzle and brain-training books for both children and adults. He lives in the UK and is also the founder of the daily brain-training site www.BrainedUp.com.
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