The Hellfire Club (Double-length BDSM novel)

Hooded men, all ageing and wealthy, landowners and lords of the realm, taking their pleasure with village girls and serving maids. The secret cave system provides the meeting place, the cells, the jailer and the chains and whips the mediums for the entertainment. Then add in a host of young women, recruited or lured especially to suit the needs of the particular members. Not all sessions are group, many like to practice their preferences in private - apart from the noise, naturally. Do the caves and the club really exist? Indeed they did and perhaps still do, the location of it is given in the story.