Abby London, left, 7, and her sister, Hailey, 10, of Lewiston walk from business to business during the United New Auburn Association Happy Hello-Ween event on Saturday. Children went trick-or-treating at participating businesses and visited an “awesome” haunted house at the Boys & Girls Clubs of Southern Maine — Auburn/Lewiston Clubhouse. The siblings’ mother, Alicia Willey, father Scott Gammon and brother, TJ, 3, walk behind.