The remarkable and inspiring story of William Still, an unknown abolitionist who dedicated his life to managing a critical section of the Underground Railroad in Philadelphia, helping hundreds of people escape from slavery. Working alongside Harriet Tubman and others at the center of the struggle for Black freedom, Still helped to lay the groundwork for long-lasting activism in the Black community. Through meticulous research and engaging writing, Vigilance establishes William Still in his rightful place in American history as a major figure of the abolitionist movement.