Set in the crucible of 1850s America, Sound of the Trumpet follows Captain John Brown, a man convinced by divine calling to violently confront the evil of slavery. As Brown and his sons wage bloody campaigns in Kansas and beyond, his path collides with Frederick Douglass—a fellow abolitionist committed to words over weapons. Their tense friendship and debate over faith, violence, and freedom builds toward the infamous raid on Harpers Ferry. Combining rich artwork, gripping dialogue, and true events, this graphic novel presents a haunting exploration of conviction, sacrifice, and the moral weight of justice.