Syed Mustafa Siraj?s iconic sleuth Karnel Niladri Sarkar, with his trademark hat, cigar, and piercing gaze, is a towering figure known to all. After retiring from the army, he became a passionate naturalist and a professional detective. His loyal assistant, journalist Jayanta, and occasionally the overly enthusiastic retired inspector Haldar, who often lands them in trouble, accompany him on his adventures. Karnel travels across India, in search of natural wonders, or mysteries to be solved. Each of his thrilling cases not only unveils a suspenseful story but also introduces various known and unknown facts. "Ek Dojon Karnel" is a collection of 12 intriguing mystery stories and novels.