Bolt by Dick Francis [Fiction, epub/mobi/pdf] {G4mbl3R}

Kit Fielding's patron, Princess Casilia, is in trouble. Her invalid husband is being threatened by a business partner. And to enforce the threat all the Princess's best runners are being wantonly destroyed - shot by a bolt.

The only person she can turn to is Kit, but he has problems of his own. His fiance Danielle appears to have changed her mind. And the old Fielding-Allardeck feud has once again violently intensified.

Wherever he goes, the champion jockey seems to attract bloodshed...