It is the fourth and final book in the Lamia Zacharius series.

From the publisher:

In a huge old house in the small quiet town of Thessaly, another baby is born. It is the size and shape of a newborn infant, pink-skinned and plump - but it is the essence of all that is evil: a deadly, horrifying demon who hungers for fresh human blood.

And as the lovely "doctor" Lamia Zacharius, Queen of the Vampires, cradles the scarlet-eyed creature in her arms she croons with hideous delight. For now she has all the innocent young mothers of Thessaly under her spell, never thinking that their sweet, trusted doctor is really the death-doctor.

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