Scene from the annual Trick-or-Treat on MainStreet Friday in downtown Los Alamos. Photo by Skip Wecksung

Aspen Copies owners Dawn and James Cline at Trick-or-Treat on MainStreet Friday. Photo by Skip Wecksung

Scene from the annual Trick-or-Treat on MainStreet Friday in downtown Los Alamos. Photo by Skip Wecksung

The community enjoyed performances by Dance Arts Los Alamos, En Pointe Dance,  SaxAtomix and the Teen Center flash mob dance to ‘Thriller’ during the annual Trick-or-Treat on MainStreet Friday in downtown Los Alamos. Photo by Skip Wecksung