Vincent and the Zerg sprinted through the plaza of Bright Moon City. It was clear where they were going. They were heading to the battlefield where everyone was besieging Andre!
During the period when Vincent did not participate in the battle, Andre's situation had eased up a lot. Andre was able to deal with Horace, Harson, and the others' attacks. Meanwhile, Avril and Angelina's harassment at the periphery could only create a small amount of trouble for Andre. It was not enough to expose his fatal flaw.
The only individual who was not participating in the battle was Dave. Although he had completely broken off his father-son relationship with Andre and realized that Andre had become a demon that was against the elves, he was still unable to cross the final hurdle in his heart to draw his weapon to deal with Andre.