André Norton 
Ralestone Luck 

"Ralestone Luck" by André Norton is a novel set in 18th century England that follows the story of two orphaned brothers, Kerith and Giles St. Michel, who discover that they are the last surviving members of the Ralestone family, a wealthy and influential dynasty with a long history of political power and intrigue. As the brothers try to uncover the secrets of their family's past and reclaim their inheritance, they find themselves caught up in a dangerous game of political maneuvering and assassination attempts. With the help of a loyal servant and a band of smugglers, the brothers navigate treacherous waters as they seek to expose the corruption and greed of their enemies and restore the honor of the Ralestone name. Along the way, Kerith and Giles also encounter a group of Romany travelers and are drawn into their mystical world of magic and superstition. As the brothers fight to reclaim their rightful place in society and unravel the mysteries of their family's past, they must also confront their own inner demons and come to terms with the true meaning of family, loyalty, and love. Overall, "Ralestone Luck" is an exciting and engaging adventure story that combines elements of historical fiction, mystery, and romance, and explores themes of identity, justice, and the power of the human spirit.