Rider in the Dark — Victoria Holmes

Everything in helena's life is in perfect order. As the daughter of magistrate and quarry owner Lord Roseby, she has a comfortable home on a grand estate, and with the help of her best friend, Jamie the stable boy, she is secretly able to ride her father's powerful horses -- without the confines of a side saddle. Then in a single day, everything changes. A visit from the local customs officer reveals that dangerous smugglers are on the loose in Helena's quiet village. That same evening, Lord Roseby brings home a mysterious and beautiful stallion. Before Helena knows what's happened, her world is turned completely upside-down, and becomes more exciting than she ever could have imagined.