Attempt to achieve a minimum score of 6 on this exceedingly challenging book-themed quiz and kindly share your results.

1. Even though I had proofread the 1903 edition of The Ambassadors, I didn't notice Harper & Brothers had switched chapters 29 and 28, a mistake left uncorrected for nearly half a century. Who am I?

Henry James
Mark Twain
Upton Sinclair
Rudyard Kipling