The book is set in Stabiae, near Mount Vesuvius, Italy, in 89AD, ten years after its eruption.[3] Flavia's husband's uncle has bought a villa there, and while working on its reconstruction Flavia and her husband find the body of its previous owner: not overwhelmed in the eruption but laid out in a locked store room.[1][2]
The cover of the first UK hardback edition shows a battered sculptured head half-buried in glowing embers.[1] Davis has said that it represents Tyche, goddess of fortune and owner of the first set of dice, wearing a mural crown.[4] The American first edition cover shows a woman with a dagger looking through the atrium of a villa towards a man with his back to her: Vesuvius is visible in the distance.[2]