Queen Lucia.

Lucia is the social queen of the small English village of Riseholme, where everyone is in everyone else's business; where Daisy and Lucia compete to have the best parties, to be the best hostess, to invite the best visitors, etc. Then along comes a newcomer who upsets everything.

This is the first book in the Lucia series. Next are Miss Mapp; Lucia in London; Mapp and Lucia; Lucia's Progress; Trouble for Lucia.