When solicitor Charles Hargreaves unexpectedly inherits the title of Baron and the estate of Staplewood Park, he finds himself thrust into a world far removed from his former life. The grand Kentish estate holds more than faded elegance and rural traditions—it hides secrets buried deep within its walls and woods.

As Charles settles into his new role, he forms an unexpected friendship with the spirited widow Rosalie, known locally as Lady B. Together with family, friends, and loyal staff, they begin uncovering curious mysteries surrounding the estate: an underground chamber hidden in the woods, strange architectural plans that suggest the house was meant to be far grander than it appears, and a coded ledger hinting at a fortune made in distant India.

But when a man arrives claiming to be the rightful heir to the Hargreaves title, Charles must prove the truth about his inheritance before everything he has come to value is taken away.

Rich with village traditions, romance, and intrigue, Staplewood Park is a charming historical mystery about legacy, love, and the secrets that old houses keep. It is the sequel to Grahame's debut historical novel, The Yellow Diamond.