The same post brought me a letter from Westhouse & Marbank, of Fenchurch Street, to say that the description tallied in every respect with that of their employee, James Windibank. Voilà tout!’

‘And Miss Sutherland?’

‘If I tell her she will not believe me. You may remember the old Persian saying, “There is danger for him who taketh the tiger cub, and danger also for whoso snatches a delusion from a woman.” There is as much sense in Hafiz as in Horace, and as much knowledge of the world.’