শঙ্কু সমগ্র

The book gathers diary-based tales centered on a brilliant scientist-inventor whose whereabouts are uncertain, inviting readers to decide how much is fact and how much is fiction. Across the collection, he records strange experiences, experiments, and discoveries.

The stories move episodically through expeditions, conferences, and encounters with mysteries, crimes, and unusual people. They repeatedly blend science with adventure, suspense, travel, and occasional fantasy or supernatural touches.

The collection presents the protagonist as a world-traveling inventor with memorable companions, unusual devices, and a life devoted to research more than recognition. The overall effect is a succession of imaginative adventures that can be read separately or as a larger life-story assembled from diary entries.