Ghurghutiar Ghotona

An old man of Ghurghutia village near Palashi invited Feluda to solve a puzzle The mans pet parrot recites a numeric code which is actually the combination number of his iron chest The parrot says Trinayan o trinayan ektu jiron When Feluda solved the puzzle he gave him four rare books of Émile Gaboriau as a reward The very next day when Feluda is returning towards Kolkata with Topshe smelled something fishy in the old mans house He started last time investigation and it revealed that all was a made up plan and there was a murder behind the entire plot