Like many other girls, young Laura Keen is in love with champion jockey Fred Archer. But Laura has an advantage -- her uncle Harry is a trainer at Newmarket, so she has a chance to actually meet, and ride, with dear Fred.
When Harry takes in a runaway, whom Laura calls Tiger, she transfers some of her love to him. Until a surprise revelation makes her uncomfortable in his company.
They watch as Fred's career skyrockets, all the while wondering if and when disaster will strike.
While marketed as a young-adult book, personally I found some of the content inappropriate for teenagers (especially considering that this book was published in 1981).