Nor is there any solid evidence that he was responsible for the increase in speed, since it was White Star’s clear and stated policy that they sold luxury rather than a record crossing. It is not anyway realistic to exonerate Captain Smith from the decision to go faster, as some have tried to do, when the order could not have been carried out, no matter where it came from, without his approval. During those frightful last two hours, Ismay had in fact spent a good deal of the time helping women and children into the boats before the temptation to survive proved too much for him. I wonder if his subsequent title, The Coward of the Titanic, which cast such a shadow over the remainder of his life, was quite merited.

I was recently in Budapest, where they were filming my scripts for the ITV/Indigo production of the story. Standing alone on the huge sets, astonishing replicas of the promenade deck and the boat deck, it was impossible not to think of that moment, a hundred years before, when some of the great names of Belgravia and Newport stood, in silent and dignified groups, waiting to learn their fate. The American Croesus John Jacob Astor and his pregnant young wife, Madeleine; the banking Wideners of Philadelphia; the railway king Charles Hays; the hedonist Benjamin Guggenheim; the silent-movie queen Dorothy Gibson; and behind them all those other men, women and children, rich and poor, old and young, from every background under the sun, for whom the next hundred minutes would deliver them either to life or to death.

Despite the wealth of new evidence gleaned from the discovery of the wreck, long after this book was first published, some of the mysteries of the sinking will probably never be solved. Why some piece of crucial equipment was mislaid, why this telegram was ignored, why that warning went unremarked.

And, like most of us, I am not sure of the lessons we can draw from this awful story; maybe just that we cannot know what Fate has in store, that we should not forget man is never the superior of nature, or simply that ordinary men and women are capable of acts of courage and kindness that make them great in the doing. Perhaps that’s it. That savage events can inspire people to greatness.