Professor of Law Jennifer Mckay and her daughter Monica invite Adam into their unique Federation mansion situated in the leafy Adelaide suburb of St Peters. They want Adam to investigate the rumour that a web of mysterious wires found in their attic was once part of a clandestine radio station that was used to track and broadcast the movements of allied ships during the Second World War. The story takes an unusual turn as Adam unearths a link to a group of Jehovah Witnesses and a compelling story about a battle for religious freedom emerges.

Adam is also asked to look into the life of wealthy wool trader R. J. Coombs, the home's original builder. Adam discovers why the enormous wealth accumulated by Coombs disappeared during the Depression, and the tragic events that brought his family to financial ruin.