Chance developments

"While gathering material for a photography book about Edinburgh, Alexander McCall Smith found himself inspired to create stories about the people captured in a number of particularly striking photos. A smiling girl leading a younger girl astride a pony, and a boy in a kilt on a tricycle beside them, gives rise to a story of a lifelong romance between the two riders. A dapper, roguish-looking man perching on a lady's knee sparks the story of a ventriloquist and an animal handler who work in a circus, and who, under the most delightfully unexpected circumstances, fall in love. The image of a…