Meet Greta Helsing, doctor to the undead. After inheriting a highly specialised and highly peculiar medical practice, Dr Helsing spends her days treating London's undead for a host of ills: vocal strain in banshees, arthritis in barrow-wights and entropy in mummies. Although barely making ends meet, this is the quiet, supernatural-adjacent life Greta's dreamed of since childhood. But when a sect of murderous monks emerges, killing human and undead alike, Greta must use her unusual skills to keep her supernatural clients - and the rest of London - safe.

When Greta Helsing, doctor to the undead, is called to Paris to present at a medical conference, she expects nothing more exciting than professional discourse on zombie reconstructive surgery. Unfortunately for Greta, Paris happens to be infested with a coven of vampires - and not the civilised kind. If she hopes to survive, Greta must navigate the maze of ancient catacombs beneath the streets, where there is more to find than simply dead men's bones.

Meet Greta Helsing, doctor to the undead. In the hills above Marseilles, Oasis Natrun is a highly secret health spa for mummies, equipped with the very latest therapeutic innovations both magical and medical. To Dr Greta Helsing, it sounds like paradise. But when she takes the job of interim clinical director, it isn't long before Greta finds herself faced with a medical mystery that will take all her diagnostic skill to solve. 

When a barrow-wight shows up on Greta and Varney's doorstep one night with an 11-year-old girl who's been newly - and forcefully - bitten and turned, it's up to Greta and her vampiric friends to find out who did this to her, and why.

After narrowly avoiding the end of the world, the leaders of Heaven and Hell are struggling to collaborate according to the terms of their new treaty - especially because angels and demons are, quite literally, allergic to each other. Seeking a solution, the powers that be decide to see if the allergy persists on Earth by sending an angel and demon on a research trip, first stop: New York City. And what better chaperone than Dr Greta Helsing, who happens to owe Hell a few favours of her own?