Dick Francis, a champion steeplechase jockey who became a best-selling British mystery writer, died Sunday at his home in the Cayman Islands. He was 89.

Ruth Cairns, a spokeswoman for Francis, said he died of natural causes.

He wrote 42 novels, many featuring racing as a theme, after retiring from racing in 1957.

Francis’ first book, published in 1957, was his autobiography, “The Sport of Queens.” His first novel, “Dead Cert,” came out in 1962 and he followed up with another every year.

In later years, Francis wrote novels with his son Felix, including “Silks” (2008) and “Even Money” (2009). “Crossfire” will be published this year.