Flying Fifty-Five

isinherited by wealthy dad amateur jockey Bill goes to work incognito at racing stables of Stella Barrington, who has inherited father's racing stables but stable is in trouble cos she spends on retaining dad's slowcoaches. Bill lands job of head stable lad; he could be the man to raise cash via a betting coup on stable rogue (tamed by Bill) Flying Fifty-Five. Confusion arises when he's mistakenly reported as murdered. Also he's being blackmailed for passing dud cheque. (Summary by SinnerMa)