This seemed like a cut-and-dried case of suicide to Detective Sergeant Kathleen Doyle; the decedent—a wealthy theatre patron—must have decided that life without her famous husband was too hard to bear, and so she’d ended it. Indeed, nothing about the tranquil scene would indicate foul play, save for the housekeeper’s insistence that something was amiss.

London, 1923. Newly minted research assistant Saffron Everleigh is the first woman to hold the position at University College of London. When she attends a dinner party for the school, she expects to engage in conversations about the university's large expedition to the Amazon. What she doesn’t expect is for Mrs. Henry, one of the professors’ wives, to drop to the floor, poisoned by an unknown toxin. Dr. Maxwell, Saffron’s mentor, is the main suspect, and evidence quickly mounts.

Miss Busby helped Major Heathcliff Lennox solve a series of murders at Bloxford in the Cotswolds. Now, she finds herself drawn into a new murder, but this time, it's just her, and she must rely on her sharp mind and sharper wits to catch a Cotswolds killer, along with a handsome police inspector and a reporter who's keen to make her mark.

Amelia Amesbury—widow, mother, and countess—has a secret. Amelia writes for a London penny paper, doling out advice on fashion, relationships, and manners under the pen name Lady Agony. But when a lady’s maid writes Amelia to ask for advice when she believes her mistress has been murdered—and then ends up a victim herself—Amelia is determined to solve the case.

Jo Jones has always had a little trouble fitting in. As a neurodivergent, hyperlexic book editor and divorced New Yorker transplanted into the English countryside, Jo doesn’t know what stands out more: her Americanisms or her autism. After losing her job, her mother, and her marriage all in one year, she couldn’t be happier to take possession of a possibly haunted (and clearly unwanted) family estate in North Yorkshire. But when the body of the moody town groundskeeper turns up on her rug with three bullets in his back, Jo finds herself in potential danger—and she’s also a potential suspect.