All Books
Grand Old Books

Grand Old Books

The greatest books you've never read.

📖Help us add more — buy us a book

Explore

  • About
  • Browse Books

More

  • Privacy Policy
  • Send Feedback

© 2026 Grand Old Books

The Invisible TriangleNew
← The Complete Adventures of Byomkesh Bakshi

The Invisible Triangle

A Murder Without Evidence, A Mind Game Begins

by Sharadindu Bandyopadhyay
Detective FictionMystery

Adrishya Trikon (অদৃশ্য ত্রিকোণ)

Originally in Bengali1961
29 pages32 min read
Start Reading
Share

About This Book

When Byomkesh Bakshi and his companion find their government work stalled, an intriguing tale from a clever police inspector draws them into a murder mystery with no clear solution—only a confession can catch the killer. As the boundaries between storyteller and detective blur, Byomkesh must devise a plan as cunning as the crime itself. Can intellect and intuition reveal the invisible threads of guilt?

Characters

View all 10 characters

About the Author

Sharadindu Bandyopadhyay
Sharadindu Bandyopadhyay

1899–1970

Sharadindu Bandyopadhyay (1899–1970) was a celebrated Bengali author, best known for his enduring contribution to Indian detective fiction. Born in Jaunpur, Uttar Pradesh, Bandyopadhyay was educated at Vidyasagar College and later at Patna University. He initially worked as a teacher and a scriptwriter for the Bombay film industry, but his literary pursuits remained central throughout his life. His prolific career spanned several genres including historical fiction, short stories, and plays, but he achieved lasting fame for his creation of the detective Byomkesh Bakshi. Bandyopadhyay’s works reflect a deep engagement with the social and cultural life of early- to mid-20th-century Bengal.

Places and Terms in this Book

Bengali— Refers to the language and culture of Bengal; Reba is seen reading a Bengali book.

Dak bungalow— A government guest house, often used for lodging by officials or travelers in India.

Fiat— An Italian automobile brand; here it refers to the small car Reba buys after selling the big house.

Main police station— Refers to the central or principal police station in the town, as opposed to a smaller local station.

Rabindriya— Refers to the style of writing associated with Rabindranath Tagore, a famous Bengali poet and writer.

The adventures of Byomkesh Bakshi— A book within the story, referencing the exploits of Byomkesh, written by Ajit.

View all 7 places & terms

Vocabulary

babu— A respectful term of address for men in Bengal, often used for educated or official persons.

Daroga— A term for a police inspector or officer in India.

letterhead— Paper with a printed heading, often bearing the name and address of a person or organization.

photostat— An old-fashioned term for a photocopy.

satchel— A small bag, often used for carrying documents or equipment.

View all 5 vocabulary

More by Sharadindu Bandyopadhyay

The Complete Adventures of Byomkesh Bakshi

The Complete Adventures of Byomkesh Bakshi

Sharadindu Bandyopadhyay

Bengali · 1932–1970 · 32 stories