You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.

Category: MYSTERY NOVELS
Clue: The first line of dialogue in this 1930 novel is spoken to secretary Effie Perine, "Yes, sweetheart?"
the maltese falcon

Category: ANCIENT GREECE
Clue: The Greeks had 4 national festivals: the Nemean Games, the Pythian Games, the Isthmian Games & these
the olympic games

Category: MUSICAL INSTRUMENTS
Clue: Newly discovered, perhaps the oldest playable instrument is one of these, made from a crane's bone
flute