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I have not read, but here is the backcover synopsis.

New York Times bestselling author Dick Francis presents his trilling novel: the story of architect Lee Morris who inherits a partial ownership in the Stratton Park racecourse - and with it, a dangerous position among the warring upper-class family trying to settle its fate. Morris would like to see the course restored to its former grandeur, but the various Stratton heirs have plans of their own. When an explosion rocks the grandstands, the disagreement turns violent - and Morris finds himself in a race to save himself and his family from an unknown culprit...

Typical Dick Francis: Keeps you guessing right to the end.

Another fun Dick Francis. Not too deep, not too violent, quickly sketched characters