Tolstoy work that inspired "Natasha, Pierre & the Great Comet of 1812" (3,3,5)

I believe the answer is:

war and peace

(Other definitions for war and peace that I've seen before include "work" , "Tolstoy epic" , "Wee panda car (anag) -- novel by 18" , "Tolstoy novel" , "Book by Tolstoy" .)

I've seen this clue in the USA Today.

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