End of an Iron Man

Jonathan Blake, sent to ask about some men who had disappeared, found a reclusive millionaire's isolated manor and its derelict ironworks a place he would not care to be found dead in. But the staff was selected from beautiful ladies, which eased Blake's feeling of strangeness - until he had a terrifying suspicion that they knew murder victims were being sold to a dogmeat butcher. The idea was grotesque, but people HAD disappeared...