Deptford Trilogy. Fifth Business, The Manticore, World of Wonders, Paperback/Robertson Davies

At two minutes to six on December 27th 1908 the lives of three people become inextricably bound together by the trajectory of a snowball. There is ten-year old Dunstable Ramsay; his 'lifelong friend and enemy' Percy Boyd Staunton; and, Paul Dempster prematurely born when his pregnant mother is struck by Percy's icy missile.