leave a cavity, if you will, in the chest?’ ‘Well observed, Mr Stevenson. And that is why we will fill the vacuum with paraffin wax.’ Fanny looked highly dubious, and no doubt so did I. Before I could ask it myself, Fanny said, ‘And once the lung has been deflated and the paraffin introduced, how long before the lung is restored?’ Dr Rüedi tilted his head this way and that. ‘Several weeks. Perhaps a month. Or two. Much depends upon the patient.’ Subjecting myself