William Wells Brown 
Narrative of William W. Brown, A Fugitive Slave [EPUB ebook] 

Excerpt: "The writer of this Narrative was hired by his master to a "soul-driver, " and has witnessed all the horrors of the traffic, from the buying up of human cattle in the slave-breeding States, which produced a constant scene of separating the victims from all those whom they loved, to their final sale in the southern market, to be worked up in seven years, or given over to minister to the lust of southern Christians. Many harrowing scenes are graphically portrayed; and yet with that simplicity and ingenuousness which carries with it a conviction of the truthfulness of the picture. This book will do much to unmask those who have "clothed themselves in the livery of the court of heaven" to cover up the enormity of their deeds."