Klaus climbs to the top of the tower to save sunny and discovers a giant magnifying glass pointed at the ruins of their house. Violet tries to convince judge strouss that the play is real but fails. Violet ends up marrying count olaf. Count olaf then preceeds to tell the audience his evil plan. Nobody can do anything because it's not illegal for him to marry violet. As count olaf is talking Klaus points the giant magnifying glass at the marriage certificate and sets it on fire. Count olaf tries to make a break for it but he is captured. The final scene has violet Klaus and sunny all sleeping as Mr. Poe drives them to their next guardian. Lemony Snicket tells us that Olaf has escaped and is now on the run.
Hazax of Rodmore
Chosen answer: On the beach, where Mr. Poe comes to inform them of the fire as the movie starts.