three o'clock in the morning
It was three o'clock in the morning . Along a deserted pavement of Riverside Drive strode briskly a young man whose square-set shoulders and erect poise suggested a military training . His coat , thrown carelessly open to the cold night wind , displayed an expanse of white indicative of evening dress . As he walked his heels clicked sharply on the concrete with the forceful firm tread of the type which does things quickly and decisively .