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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.
Hi! I'm Libroamiko, your book advisor.
How can I help you?