Twins separated at sea! Cross-dressing! Servants and fools in charge! No one knows how to stage an Upstairs, Downstairs kind of dramedy like William Shakespeare. Mt. Vernon-Lisbon Community Theatre’s summer production of Twelfth Night will be the first of Shakespeare’s plays staged by the local group. (Julius Caesar was produced by Open Arenas Theatre in Mt. Vernon in 2012.) A cast and crew of dedicated artists and actors from throughout the cultural corridor will perform at the Uptown Theatre in the First Street Community Center, 221 1st St., Mt. Vernon on July 21-23 at 7:30 PM and on July 24 at 2 PM. Tickets are $12 and may be reserved by calling 319-535-2030.