A fairly low bibliofactor-- murder victim is a 1930s mystery writer who gave up writing and was killed 50 years later. Amateur sleuth is a bookshop owner who meets victim because he wants to sell some books. Apparently this is a book in a series, and I'm not familiar with it, and there were a few allusions to previous things that didn't quite make sense-- or rather characters were sensitive to issues that I didn't know the background on. ( )