My rating: 3 of 5 stars
A bargain book found in a used bookstore at Boulevard St. Michel, in Paris.
Not so good as expected. The plot takes a long while until it starts to give full attention of the siege of the Khyber Pass.
By the way, it should be pointed out that the word “khyber” in Afghan mens “pass” in English, as mentioned by Lisa Hill. So the title of this book is redundant.