Tolstoy's "War and Peace" - Thesis Needed

Can someone give me some possible thesis's I could use to develop a paper on Tolstoy's "War and Peace" I would like to analyze something specific so the thesis should be specific rather than general. The paper length is 4-5 pages. I am not asking you to write the paper but give me some possible thesis's to work from. Thanks

Sphinx Motif War and Peace by Leo Tolstoy

What is the significance of the sphinx motif in War and Peace by Leo Tolstoy? (I just need a general "how to" on figuring out the answer)