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A special book that contains a variety of riddles and puzzles, united by one theme - being in the ocean. It develops logic, spatial thinking, ingenuity, and is cool in terms of learning about the topic «Ocean»!

Books of the series «Puzzles. Collecting Treasures" series are books that contain stories with lots of puzzles, but these are not the usual puzzles that children might have seen before. These puzzles don't tell you exactly what to do, but only provide a certain amount of information from which readers have to figure out what to do next and how to solve them! The books have hints to help the reader get out of the dead end, and also solutions in case the child does not understand how to solve the puzzle.