The Balloon Man (Sarah Kelling and Max Bittersohn Mysteries) by Charlotte MacLeod

Since she has been warmly embraced by her husband's family, Sarah Kelling decides to throw her nephew a swanky wedding at her parents' seaside estate, but plans go awry when her husband Max is attacked by a burglar eager to pilfer the bride's jewels and a hot air balloon drops off a dead body. 30,000 first printing.