6. The Lion, the Witch and the Wardrobe
With 85 million copies sold, this is a high fantasy novel. It was published in 1950 and was the first one in the series The Chronicles of Narnia. The book has been a favorite among children and adults alike. It explains the story of four siblings, who happen to find another world in a wardrobe. While these children initially try to go back, they soon find that they are to develop a very important relationship with the newfound world. With its tragic ups and downs, the book certainly is an amazing read.