Considering, Pranjal Verma wrote her book "Case No. 107" when she was just 13 years old, the story is a remarkable crime thriller. The main Characters of the narrative, Hina, Priya, Lakshman, and Dev who are four detectives go forward to investigate the mysterious murders of four call center employees. Pranjl Verma has skillfully combined the issues that take place between work place employees and revenge into a thrilling story. The readers can be assured that the story will keep them engaged through by her straightforward writing style and story twists. Lastly, the story can also be considered thought provoking because it also conveys the negative effects of envy, jealousy, and revenge.