When Harriet amived at her destination in Philadelphia, she vowed to return to Maryland to help other slaves escape. During the 1850's, Harriet made nineteen trips as a "conductor" in the Underground Railroad, risking her life every time, and she successfully led about 300 slaves to freedom. A reward of S40,000 was offered by the South to any bounty hunter who brought Harriet in to the authorities, but she was never captured, and none of her "passengers" were ever captured, either. She was a brave woman During a forty year period, a total of about 100,000 slaves escaped from the South through the Underground Railroad