This book is a very useful book when you read its contents
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.
