Mrs Martin's Incomparable Adventure doesn't seem to be in the database yet. But the second I saw the blurb I smashed the PreOrder button.
"Mrs. Bertrice Martin—a widow, some seventy-three years young—has kept her youthful-ish appearance with the most powerful of home remedies: daily doses of spite, regular baths in man-tears, and refusing to give so much as a single damn about her Terrible Nephew...."