Masks will be donned, makeup applied and shoes laced for a night of mystery and dancing during the Polo Area Community Theatre’s fifth annual Masquerade Ball. Before the festivities can begin, the theater needs to be dressed for the part, and PACT volunteers were busy Wednesday night decorating Polo Town Hall. They set up backdrops, strung lights, and hung decorations to prepare for the ball. Guests will need to be dressed to the nines – formal attire and masks for the Jan. 19 ball. For more about the ball, and ticket information, turn to the Planit listings on Page A10 or go to polotheatre.org.