Satyanweshi
It is the first Byomkesh adventure written by Sharadindu Bandyopadhyay. Ajit Bandyopadhyay lives in a hostel, along with some other people. Ashwini Babu and Ghanshyam Babu are two of the hostel inmates; they live next to Ajit. The hostel is run by a philanthropic homeopathic doctor, Anukul Babu. Ajit has recently become aware of some murders that have happened in their locality. They seemed to have been done by the same person, possibly a serial killer. This mystery occasions the arrival of the sleuth Byomkesh and his author friend Ajit to Balabantpur. The visit, however, is under the pretext of an invitation to take part in a hunting expedition. In the course of their stay, they unravel many secrets involving the residents of the palace and also about the topography of Balabantpur. Byomkesh is particularly intrigued by the character of Kaligati, the royal physician, and uncovers several clues which connect Kaligati with the disappearance of Harinath. It is discovered that Alaka is sexually frigid. But she was anxious to continue the bloodline of Himangshu. Not getting any sexual pleasure from his wife, Himangshu was attracted towards Leela, the daughter of Kaligati. On a previous hunting expedition Alaka had sent Leela with Himanghshu instead of herself accompanying him. Thus Leela became pregnant with his child. But Harinath the librarian loved Leela and wanted to marry her despite knowing she was carrying Himangshu's child.