Colonel Sandhurst to the Rescue (Poor Relation, #5)

Colonel Sandhurst 70s, an owner of popular Poor Relations Hotel, fears calling in debt owed by Sir Randolph Gray. Sandhurst offers Gray daughter, fetching Frederica 17, refuge from marriage with hefty Lord Bewley, who mistakes chambermaid Mary Jones for heiress. Sandhurst demands ransom from Randolph. Captain Peter Manners, engaged to Belinda, falls for Frederica.