Dick Francis's refusal

Six years ago, investigator Sid Halley retired for good. For the sake of his wife and new daughter, he gave up that life of danger and he thought that nothing would ever lure him back. He thought wrong. Sir Richard Stewart, chairman of the racing authority, begs Sid to investigate a series of dodgy races. Sid refuses, but the following day, Sir Richard is found dead. And then a man with an Irish accent contacts Sid, telling him to deliver a whitewashed report about the suspected race-fixing ... or else. At first Sid ignores these warnings, but as the intimidation tactics escalate -- and Sid's own family comes under threat -- Sid realizes he must meet his enemy head-on.