For upper elementary children, this chapter book introduces young readers to the underground railroad hero, Harriet Tubman, Black Moses, that fearless conductor. With a helpful timeline at the end of the book and lots of black and white illustrations throughout, this is an interesting true story for children everywhere. Seven chapters, 102 pages, reading level 3.0. Author - Yona Zeldis McDonough. Illustrator - Nancy Harrison. Ages 7-10