A Series of Four Books or Operas
This page is the CodyCross answer for the clue below from Art Museum, Group 731, Puzzle 2 (Creativity).
Question is: A Series of Four Books or Operas
and the answer is: TETRALOGY
Word Meaning:
TETRALOGY — A set of four works of art that are connected, and that can be seen either as a single work or as four individual works. They are commonly found in literature, film, or video games.
Definitions from Wiktionary.