How does he become involved in the abolitionist movement?

In Chapter Eleven, we learn that Douglass discovered "The Liberator," an abolitionist newspaper. He began subscribing and was awed and inspired by its contents. It spared no expense in its condemnation of the evils of slavery. Douglass attended anti-slavery meetings. One time, at a slavery convention in Nantucket, he was asked to speak. This was a cross he took up reluctantly, but from that moment on he tirelessly orated and campaigned for abolition.