After her brother's and her fiancé's deaths during the war, Miss Isobel Carington dedicates her time to establishing a charity for widows and orphans. Society tolerates her and considers her on the shelf with slim chances of marrying. Those opinions drastically change when an anonymous bet is placed at White's that she will marry Sterling Sinclair, one of the infamous Sinclairs, newly arrived from Scotland. Isobel believes she can turn the bet into an advantage for her charity and plays along.

Their father has tossed Sterling Sinclair, the Marquess of Blackburn, out of Scotland with his siblings. The Sinclair's are known far and wide as the Seven Deadly Sins because of their wild ways. Disgusted with his children's behavior, he denies them any funds until they all redeem themselves and prove they are worthy of the Sinclair name. Sterling, the eldest, plans his redemption with the marriage of an upstanding and staid miss. The bet he anonymously places will provide him with a fortune.

These two vastly mismatched people provide society with vast entertainment. Bets are placed and the entire populace tries to manipulate the couple. The courtship romp is thrilling and exciting -- until Isobel loses her heart to Sterling. The question then becomes: can Sterling give his heart to Isobel?

TO SIN WITH A STRANGER begins the Seven Deadly Sins series featuring the Sinclair brothers and sisters. The Deadly Sins should not be this much fun. Sterling, personifying greed, meets his opposite as Isobel is controlled and self- possessed. Ms. Caskie gives an added treat by putting the fascinating Elgin Marble history into the plot.