The Fortunate Marriage. Warstowe Saga Book One

Poor, orphaned Louisa was only at Rosewell a short time when she realised that all was not well between her golden-haired cousin Caroline and Caroline's coolly handsome husband, Colonel Rowland Dynham. "Much too wild, " the gossips said of Caroline. But everybody was ready to accuse the colonel when a terrible accident befell his wife. Louisa refused to believe that Rowland could have been responsible for what happened to Caroline and defended him tirelessly, even when his own children turned against him.
She soon realised that it was not only her belief in Rowland that was unshakeable, but her love for him too. A gripping story of forbidden love, this is a stunning close-up of Regency life from the ballrooms and gaming dens of London to the rocky and beautiful Cornish countryside.