Celine Fairweather rushes to Blackthorn to the aid of her sister Penelope Radclyff, the very pregnant Duchess of Blackthorn. Penelope has been advised not to exert herself. (Thankfully, she's not the sort to heed any sensible advices and so the pages are intermittently splashed with her quirky yet vivacious personality.) Celine arrives in tow with her youngest sister Dorothy Fairweather, aged thirteen and the next Penelope in the making. She also has a secret agenda of her own - to find her fat poet Philly.
Celine unlike her sisters is level-headed or so she assumes herself to be. She follows Mrs. Beatle's lessons on being a Proper Lady which includes some very sensible advices and some not so much. But Celine stands by Mrs. Beatle until Lord Gorge Elmer turn up at Blackthorn thoroughly drunk. He's inflicted upon the Duke by the handsomest man in England, Lord Adair.
Lord Elmer is much sought after (except Charles Radclyff, who wants to lose the bloody man) - by his father so that he could be installed as the next Marquis, by a gang of pirates so that they could torture him, and shoot him, and make him walk the plank. But Lord Elmer is busy looking for Philbert Woodbead, the lost, fat poet whom Celine had fallen in love with when he was in Finnshire.
So the stage is set for some mad chases with arrows fired, socks knit, and breeches flying, to another happy ending with a some cussing involved (by Penelope while giving birth to her child on a pirate ship.).
A fun read, but not as fun as Penelope, the previous book. The book could have profited with a protagonist who was silly and inappropriate.
Still there is Dorothy's story to look forward to, and given that she tried to keep an orphan chimney sweep as pet, she's definitely bound to be loads of fun.