Famous historian Gourachandra Nag was murdered on the streets of Calcutta in the middle of the night. On the other hand, mysterious thefts are happening in museums one after the other in Germany and India. Is there really a connection between the two events, or just a coincidence? And Alexander? What has happened in the background of the most talked about and stirred character in history so that the famous detective Amar Roy has to get involved in a strange, stunning mystery maze? A mystery that has neither a beginning nor an end. There is only one source ? the mysterious diary of Gowrachandra Nag. How far the mystery water? How did the detective Amar Roy have to rush to Benares-Nabadwip-Srinagar in the invisible grip of the mystery? The mystery does not want to end. Kaliprasanna discovered some symbols written in the ancient Egyptian hieroglyphic script. What is the meaning of these ancient Egyptian writings? Will Amar Roy be able to break through the web of mystery and catch the real criminal? Or will the real culprit remain behind the curtain of mystery? And yes, treasure! Whose treasure, what treasure, whose treasure? If you want to know the answer to all these things, you have to read 'Alexander's treasure' on the page. The story progresses based on Amarda's unique ordinary adventure detective journey. Yes, Amarda, detective Amar Roy, is the hero of this story. Only the future can tell whether the detective Amar Roy will be able to take his place among the iconic detective characters of Bengali literature, Feluda, Byomkesh, Kakababu, Colonel etc. But it can be said without a doubt that he has all the ingredients to shake up the current decadent Bengali detective society. Among detective Amar Roy. This mystery novel begins with four completely different scattered events. The four events are ?Mysterious Death?, ?Theft at the Museum?, ?Alexander the Great? and ?Haunted House?. The four events are so contradictory that there is doubt in the mind, is it possible to have any link between the four events? But seeing the way the author enriches the event chart towards the end of the novel, it is absolutely impossible to believe that this is the author's first book. Alexander's expedition to India and Alexander's death are very relevant in the novel. Just this one episode shows how much hard work and research Animesh Babu's mystery novel is. How far the mystery water? A mystery that has no beginning, no end. There is only one source ? the mysterious diary of Gaurachandra Nag. The mystery does not want to end. Kaliprasannababu discovered some symbols written in ancient Egyptian hieroglyphic script. As the story progresses, the scope of the mystery increases with the frequency of events. The author's witty presentation, fluent writing and the rare ability to create twists in the events of the application of the reader's mind, the mercury of excitement soon began to rise. The reader's mind is bound to be stuck in the magnetic power of suspense all the time with tension, thrilling feeling, what will happen. Our sincere request to Animesh Babu is to let the detective Amar Roy go with all his might. If not for your own sake, but for the sake of the mystery-loving Bengali readers, it is very necessary to get caught up in Amar Roy's web of mystery again and again.