The Rooftop Watch Over St. Paul's

On the night of December 29, 1940, German bombers dropped thousands of incendiary devices across London in what became known as the Second Great Fire of London. Flames consumed block after block around St. Paul's Cathedral. But the cathedral survived — not by luck, but because of the St. Paul's Watch. Months earlier, architect Walter Godfrey Allen had organized a volunteer brigade of ordinary men and women who took shifts on the cathedral roof every single night.…