Figsbury Ring (grid reference SU188338) is an 11.2 hectare biological Site of Special Scientific Interest in Wiltshire, England, notified in 1975.

[1] Within the wider SSSI mentioned above, the earthworks of Figsbury Ring are sub-circular and enclose 6.4 hectares of grassland on a chalk ridge to the north east of Salisbury, in the parish of Firsdown, Wiltshire at NGR SU188338.

When Figsbury was considered within the context of the wider landscape and a range of other nearby monuments it appeared possible that the site may have begun as a Causewayed enclosure.

There is certainly sufficient evidence to state with some degree of confidence that the site was occupied (albeit temporarily or intermittently) towards the middle of the third millennium BC.

The narrator of the novel speculates as to whether the structure was British, Roman, Saxon, or Danish, and suggests it is a tomb concealing ancient dead soldiers and buried gold.