Detective Alfa ani Mrutyuche Sandesh (Detective Alfa #3)

It all begins with Alfa and Prabhav meeting a psychotic-looking person babbling around the street. While passing by, he mentions some incident of murder happened in the past and then runs away. On the very next day, he's found dead near a lake in the city. Doubt arises in Alfa's mind and he starts investigating the murder. As he reaches every person involved in the crime, more murders follow. A 3 letter message is hidden at every murder location and Alfa has to find and decode it. The case is much more than just finding a serial killer. Many awe-striking surprises are waiting for Alfa and Prabhav, which may lead their way to a scary, painful death...