 The Fugitive Slave Law passed by the United States Congress in 1850 had dramatic and visible effects not only in Georgia or Mississippi but in Massachusetts and New York. For the law required all citizens of the country to assist in returning fugitive slaves to their owners. This extension of the slave-system to the north, the subject of Thoreau’s “Slavery in Massachusetts” (1854), was on public view when an escaped slave named Anthony Burns was captured in Boston, tried by a Massachusetts court, and escorted by the Massachusetts militia and U. S. marines to the harbor, where he was taken back to slavery in Virginia. His owner placed him in a notorious “slave pen” outside Richmond, where Burns was handcuffed, chained at the ankles and left to lie in his own filth for four months. Thoreau denounced the absurdity of a court in Boston “trying a MAN, to find out if he is not really a SLAVE,” when the question has already been “decided from eternity” (R, 92). In his “Lecture on Slavery” of 1855, Emerson calls the original 1787 Constitution’s recognition of slavery a “crime” (A, 100), and he contrasts the written law of the constitution with the “Laws” and “Right” ascertained by Jesus, Menu, Moses, and Confucius. An immoral law, he holds, is void.