At the beginning of the century, the

(1) movement helped the development of a secret

(2) to allow some slaves to run

(3) from the Southern

(4)

(5). It was called the

(6)

(7).

(8) would travel by night; they would be guided by

(9). They would stop at “

(10)”,

(11) houses belonging to

(12)

(13) who would offer food and shelter.

(14)

(15) would track them, even in the Northern states. According to the Fugitive Act, all the citizens had to help capture them, otherwise they could be

(16) or even

(17). Fortunately, some of them succeeded and were

(18). The secret

(19) of

(20) people helped free hundreds of slaves from the Deep South.