Kate and Charles visit the Duke and Duchess of Marlborough at Blenheim Palace. But all is not well, for the guest list includes the exotic, erotic Gladys Deacon, the Duke’s lover, and the party ends in an apparent kidnapping and murder. Featured: the Duke’s cousin, Winston Churchill, and a young Ned Lawrence, later known as Lawrence of Arabia.

A bomb meant for England’s new King Edward and Queen Alexandra reveals a terrorist plot and raises the urgent question: in a world of spies and counter-spies, who are the real terrorists? When Jack London, American author and known Socialist, is drawn into this multi-layered plot, Kate and Charles have plenty of untangling to do.

When Kate and Charles journey to legendary Glamis Castle in Scotland to rescue a Royal who has been thought dead for nearly ten years, they find themselves in the middle of a murder investigation and a plot to topple the monarchy. Their inquiry takes place amid rising British tensions with imperial Germany, adding an espionage angle to the murder.

Dartmoor, 1901. Lord Charles is conducting a fingerprint project at the prison and Kate is finding inspiration for her new Gothic novel. Arthur Conan Doyle is there, too, working on his soon-to-be famous thriller, The Hound of the Baskervilles. The Sheridans team up with Doyle to stymie a prison escape and solve a murder of supernatural proportions.

Lord Charles Sheridan has launched an investigation into a jockey’s recent (and mysterious) death, while his wife, Kate, puzzles over the long-ago theft of Lillie Langtry’s jewels. But soon the Sheridans can’t help wondering if the two events are connected. Horse-doping, theft, and murder among the Fast Set.

Kathryn Ardleigh Sheridan and her husband, Lord Charles, are called on when scandal threatens Jennie Jerome Churchill. Her son Winston’s political future is jeopardized by a blackmailer who claims that his father Randolph was the notorious Jack the Ripper–and that the Royal Family was behind the crimes.

Kate Ardleigh Sheridan and her newly-titled husband Charles are seeking the calm of a seaside holiday in Rottingdean. But when a coast guardsman’s body is found on the beach, the town is suspected of plying its ancient trade of contraband smuggling. A writer named Rudyard Kipling helps them discover a more dangerous contemporary truth.

Newlyweds Charles and Kate Sheridan host an auto exhibition at Kate’s ancestral home, attended by Europe’s foremost investors and inventors. But competition, speed, and money prove more explosive than gasoline for one auto builder. Now the Sheridans must unravel the mystery before the carnage spreads.

The Countess of Warwick, known as Daisy, is the subject of endless rumors about her unladylike ways and temperament. But what happens during a weekend party at her Easton estate is uglier than any rumor. Two bloody murders prompt the Prince of Wales, Daisy’s lover, to tell Charles Sheridan to discover the truth–quickly.

The death of a constable and the disappearance of a child set Kate Ardleigh and Sir Charles Sheridan onto the trail of deadly greed and criminal mischief. And with the help of a shy young woman named Beatrix Potter, Kate and Charles aim to uncover the dark secrets of Gallows Green.

Kate Ardleigh–an outspoken, free-thinking, Irish-American writer of penny-dreadfuls–has inherited the family estate: Bishop’s Keep, in Essex, England. Soon after her arrival, a recently-dead body is unearthed in a nearby archaeological dig, giving Kate an idea for a novel–and an introduction to amateur detective Sir Charles Sheridan.