The story of the making of White and Black: A Journey to the Centre of Imperial Calcutta deserves to be told. It begins with one of my first assignments soon after joining The Telegraph in 1994. Aditi Roy Ghatak, a former colleague, called me to say that a certain Olaf Van Cleef, counsellor in high jewellery with Cartier, was meeting the press and if I would like to be there. Jewellery design and fashion have always fascinated me and I was glad to oblige. I already knew of Van Cleef & Arpels from an Eartha Kitt song, but I had no idea then that Olaf Van Cleef was descended from a family that was jewellers to the Tsars of Russia. He has wintered in Calcutta almost every year since, but it was only after his first exhibition of paintings here five years ago that he thought aloud if he could do anything in return for the love and affection he has enjoyed in Calcutta.