(Hannibal) –—The hot and steamy weather did not keep folks away from Hannibal’s Twain on Main festival on Saturday, according to coordinator Erik Spence…Spence says the event returns after a hiatus last year, and 58 vendors have set up along Main Street.   If you didn’t catch the arts, crafts, food and entertainment in historic downtown Hannibal yesterday, Spence says it’s not too late… Event continues from 10 to 4  Sunday along Main Street in Downtown Hannibal.