Arunendra had seen him doing this , but he kept his mouth shut .
Feluda tells him that during his youth , Mahesh babu had murdered his watchman , because the watchman had killed his favourite dog , an Irish terrier .
Arunendra had seen Feluda doing this , but Feluda kept Feluda 's mouth shut .
Feluda tells him that during his youth , Mahesh babu had murdered his watchman , because the watchman had killed his favourite dog , an Irish terrier .