Pippa Fitz-Amobi is haunted by the two murder cases she solved, by the victims, by the attention her crime podcast garnered, and by the survivors, which is bad enough--but then it starts to feel like someone is watching her.

"Hercule Poirot rushes to France in response to an urgent and cryptic plea from a client. But the Belgian detective arrives just too late: the man who had summoned him is found dead on a golf course, stabbed in the back with a letter opener and wearing an ill-fitting coat with a mysterious love letter in its pocket. Strange circumstances multiply, culminating in the discovery of a second body stabbed with the same murder weapon. While the local authorities...

Newly arrived in 1892 New England, Abigail Rook becomes assistant to R. F. Jackaby, an investigator of the unexplained with the ability to see supernatural beings, and she helps him delve into a case of serial murder which, Jackaby is convinced, is due to a nonhuman creature.

"The highly anticipated third volume of the paranormal detective series perfect for "readers who enjoy Doctor Who, Supernatural, Grimm...and of course, Sherlock Holmes stories, and who are ready to say up into the wee hours." Jenny Cavanaugh, the ghostly landlord of 926 Augur Lane, has enlisted the services of her detective-agency tenants to solve a decade-old murder--her own. Abigail Rook and her eccentric employer, R. F. Jackaby, dive into the cold...

In 1888 seventeen-year-old Evelyn Fallow, herself disfigured by the phosphorus in the match factory where she worked, has been hired as a maid to Joseph Merrick, the Elephant Man--but when the Jack the Ripper murders begin she and Merrick find themselves haunted by the ghosts of the slain women, and Evelyn is caught up in the mystery of Jack's identity.

In London, at Christmas time in 1870, a strange message in the classified ads leads the three young detectives to murders that appear to be connected with the Scarlet Rose Gang, whose leader was killed years before.

Garvie Smith is a sixteen-year-old with a genius level IQ, who can not be bothered with school, smokes cannabis, and hangs out with the bad boys--but when fifteen-year-old Chloe Dow is murdered he comes up against the ambitious Detective Inspector Singh, and both of them are determined to solve the case.

Charley Sheppard is a seventeen-year-old girl who has flashes of visions which lately seem to all be of girls who have died down by the railroad tracks, and Tom Henson is a nineteen-year-old police constable who comes to believe in her--and together they must find the killer before he strikes again.