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The Body in the Big Apple: A Faith Fairchild Mystery (original 1999; edition 2001)
References to this work on external resources.
Wikipedia in English
Amazon.com Product Description (ISBN 0380731304, Mass Market Paperback)
Young, ambitious and single in New York City in the late '809s, Faith Sibley is energized by the early success of her Have Faith catering enterprise. But she's cast into an unexpected new role when she runs into old high school friend Emma Stanstead at a swanky uptown party: sleuth! An anonymous blackmmailer is threatening to expose certain secrets of socialite Emma's less than glamorous past -- thereby destroying her reputation and her conservative husband's fast-rising political career -- and Faith fearlessly leaps into the fray. Though she lacks experience, Faith's keen instinct, insight, and determination to unmask and extortionist quickly carry her deep into the high and low life of the bustling Big Apple. And when a murder raises the stakes, Faith realizes that it's not just her old friend's good name that's in peril...it's Emma's life itself.
(retrieved from Amazon Mon, 30 Sep 2013 13:21:29 -0400)
At a party in New York, caterer Faith Sibley Fairchild meets a school friend, now married to an ambitious politician. The lady is being blackmailed by someone threatening to reveal her past which would ruin her husband. Faith goes to work and uncovers a killer. By the author of The Body in the Bookcase.
(summary from another edition)