The raven of Craven - Loy Seattle Phillips

Life for the Claibornes is already on the downturn when Christian Waters arrives at their newly built Bayswater home, in the neighbourhood of Craven, which was the edge of London in 1855.
She has come from distant shores to fulfill her post as their new governess. Or, so they think. It's not long after Christian's arrival that the Claibornes take a turn for the worse.
The Raven of Craven weaves a fictional tale around historical people and events, creating a supernatural account of slavery on a Jamaican plantation, Pre-Civil War America, and Victorian London.