What secrets were covered up at the court of Henry VIII …?

Whitehall Palace, England, 1539

When Catherine Howard arrives at the court of King Henry VIII to be a maid of honour in the household of the new queen, Anne of Cleves, she has no idea of the fate that awaits her. Catching the king’s fancy, she finds herself caught up in her uncle’s ambition to get a Howard heir to the throne. Terrified by the ageing king after the fate that befell her cousin, Anne Boleyn, Catherine begins to fear for her life…

Pembrokeshire, Wales, 2018

Dr Perdita Rivers receives news of the death of her estranged grandmother, renowned Tudor historian Mary Fitzroy. Mary inexplicably cut all contact with Perdita and her twin sister, Piper, but she has left them Marquess House, her vast estate in Pembrokeshire. Perdita sets out to unravel their grandmother’s motives for abandoning them, and is drawn into the mystery of an ancient document in the archives of Marquess House, a collection of letters and diaries claiming the records of Catherine Howard’s execution were falsified…

What truths are hiding in Marquess House? What really happened to Catherine Howard? And how was Perdita’s grandmother connected to it all?