Rotarians from left, Alison Pannell, James Wernicke and Greg Viola give out candy to eager trick-or-treaters during Trick or Treat on Mainstreet, the Oct. 27 kick-off for Halloweekend in Los Alamos. Photo by Linda Hull

A visitor from Roswell stops by the Rotary Club table during Trick or Treat on Mainstreet. Photo by Linda Hull

Rotarian Greg Viola asks a trick-or-treater about his eye-catching costume at the Trick or Treat on MainStreet event Oct. 27. Photo by Linda Hull