I agree -- it's a shame we only get the four Harriet books (only three of which feature her in an active, investigative role to begin with) ... and a couple of add-on short stories. I'd have loved to see another book that sees Harriet in the starring role (either solo or, as in "Gaudy Night", with Lord Peter only coming in for the finale) -- what a pity Sayers obviously concluded she'd said and done all there was to it in "Gaudy Night".