Justus calls the villagers together and begins to introduce Peter, when he is killed by an arrow from a detachment of Roman soldiers. Marcellus intervenes and Paulus informs him that his orders are no longer valid; Tiberius is dead, and Caligula is emperor. Marcellus informs Paulus that an imperial commission is valid until specifically countermanded by the new emperor. Paulus tells Marcellus to make him obey via a sword duel. After a prolonged struggle, Marcellus prevails. Rather than killing Paulus, Marcellus hurls his sword into a tree. Paulus, humiliated by his defeat, orders the soldiers to leave.