Banker, paperback/dick francis

Tim Ekaterin has a lot of money.

Unfortunately, it is other peoples, and it is his job to invest it wisely, or get fired.

And right now hes taken a big risk: using GBP5 million to stud a champion racing stallion.

When the resulting foals have birth defects, Tim is worried and decides that there may be something else going on at the stables.