It was astonishing to me that a grown-up could cry, and more than astonishing that anyone should cry for joy. The memory came back to me a few weeks ago, as I reread, with my 9-year-old daughter, Paul Gallico’s Flowers for Mrs Harris. For Gallico, most fondly remembered as the author of The Snow Goose, was a master of the bittersweet, of the mysterious kinship between suffering and joy. He knew how to fold together humour and poignant detail in just the right proportions to prevent his prose from curdling into mawkishness and sentimentality.