Upon discovering that Varius has confessed to murdering him and his parents, Marcus decides to go to Rome to reveal he is in fact still alive, planning to reveal the conspiracy in public so the conspirators will be unable to kill him. He runs away from the refuge and travels to Rome, evading the soldiers sent to capture him.
Marcus chooses to go to Rome after discovering Varius confessed to killing him and his parents. His intention is to reveal himself as still alive publicly to expose the conspiracy, preventing the conspirators from harming him. He flees from the sanctuary and makes his way to Rome, avoiding soldiers sent to capture him.