Just before 1400 hours on a quiet Wednesday afternoon Canton Fire and Rescue was alerted to a working structure fire at Betty's Garden Park. Upon arrival 4-2 advise there was a working fire in the wall that had not broken out yet. On arrival the Engine 7 Crew went to work exposing the fire from the exterior wall and knocking most of the fire down with a water can. The crosslay was charged and the rest of the fire was extinguished. The cause remains under investigation, but is suspected to be electrical in nature.