The Dance Hall, Paperback

The beautiful old sandstone building which was originally built for a completely different reason, was later used as a very popular dance hall.
Most people were unaware that under the main building was a secret chamber which was utterly soundproofed, and was accessible through a thick door, and down a spiral staircase.
The chamber remained locked for years, until someone found some keys, and it was put to a new purpose altogether.
It became very popular with those who knew of its existence, but when Sam Parker became involved, he changed the rules, and the chamber became his private playground, with disastrous consequences for those who were taken there.