Dick Francis Novel Dark Horse

"Imogen Duffy is an up-and-coming Irish jump jockey making her mark in steeplechase racing. But not all is well in Imogen's life. Jealous of her success, Imogen's controlling boyfriend Liam is stalking her and when she tries to break it off with him, he turns violent. Fleeing to England, Imogen hopes to leave Liam behind. But Liam vehemently refuses to let her go-until he's found dead, stabbed with a knife bearing Imogen's fingerprints. Imogen's father, convinced of her innocence, seeks out Sid Halley to ask for his help uncovering the truth and Sid reluctantly agrees to investigate. The case becomes all too personal soon after, when Sid realizes he is being stalked and threatened - is it the killer? With his life and reputation on the line, Sid races to solve the case before someone else ends up dead"--