Sawan 221 Series of books is a treasure-trove of strange, unique and fascinating. Each and every explanation in 221 world's strange & unsolved mysteries has been made in a very lucid language keeping in mind the age-group of children. The colourful illustration that goes with the explanation clarifies it all the more. 221 world's strange & unsolved mysteries is surely useful to those, young and old alike, who have a scientific bent of mind and are on the look-out for something new and exciting.

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