Deanna Raybourn

Veronica and Stoker are practically dying for a new adventure, but when their wish is granted, they find themselves up against a secret society and a darkly seductive duo in this landmark historical mystery from beloved New York Times bestselling and Edgar® Award-nominated author Deanna Raybourn. When the corpse of an entitled young man is found entirely drained of blood in a carriage next to Highgate Cemetery, Veronica's interest is piqued.
And then a second victim is found, his death made to look like a suicide-and Veronica and her intrepid beau Stoker know the hunt is on. The two men share one link: they were both members of a society so secretive that only a singular mention of it can be found anywhere. Thirsty for more clues, Veronica and Stoker hear that a young Romany boy may know more about their first victim, and the only way to the boy is through an old acquaintance of Stoker's, Lady Julia Brisbane.
Lady Julia and her dashing husband, Nicholas, occasionally track down murderers and are only too happy to help. But as it becomes clear that the secret society is a dangerous sect looking to entice immortality seekers, Veronica and Stoker find themselves ensnared by a decidedly more sinister couple. The professed leader of the society claims to be a creature of the night; his partner practices witchcraft and they both fancy themselves emissaries of the otherworldly.
Just as Veronica and Stoker get closer to learning the true purpose of the society and unraveling this macabre mystery, another body turns up, and they quickly discover they've gone from being the hunters to the hunted.