Author: Sir Arthur Conan Doyle Translated By: Debolina Mondal Produced by: 221B Harrison Road Language: Bengali Type : Story Format : Audio Story Genre : Crime Poster Design : Sumitendra Audio Editing : Subhojit from Phnoeix Audio Verse Background Music : Prattyay Characters : Sherlock Holmes - Sumitendra Dr. Watson - Prattyay Lestrade - Subhadeep Mrs Francis - Namrata Mr Francis - Neel Lord Simon - Sourav Roy Other Characters: Prattyay & Sumitendra