Harriet Tubman and the Midnight Refuge

On a freezing December night in 1851, Harriet Tubman crouched with eleven fugitives in a shallow creek bed outside Wilmington, Delaware, slave catchers' dogs baying less than a mile behind them. She had no weapon that could match their numbers. What she had was a whispered prayer and an address — the home of Thomas Garrett, a Quaker stationmaster on the Underground Railroad.…