The novel “The Rhesus Chart” by Charles Stross was published for the first time in 2014. It’s part of the Laundry series and follows “The Apocalypse Codex”.
Among the projects Bob Howard is developing at the Laundry there’s one to analyze the causes of death in the territory. This would be useful, for example, to find out if someone died because of the necromantic version of mad cow disease. The first test gives disturbing results with the need to investigate.
While his wife Mo is engaged in a difficult mission abroad, Bob Howard finds himself involved in a task more complex than he expected. In his investigation he has to deal, among other things, with some financial activities related to the use of blood but it’s well known that vampires do not exist.