When J.C. is telling Diana about the fire being alive, you see Professor Arturo listening in behind them. He lowers his newspaper and leans back against the wall. Then the jump cut to a long shot shows him do the same motions again.
When Quinn and Arturo look at the small fire on the street, the fire separates in half. Quinn turns his head and asks Arturo if he saw that. However, the fire splits just after Quinn turns his head away from it.
Two guards break in while Quinn is communicating with the flame. While one guard attacks Quinn, the flame encircles the throat of the other guard. As the combat spills to the other side of the room, the guard is struggling with his own throat, devoid of any flame effects. However, in the next shot, the flame reappears, still choking the guard.