Iris theatre, LondonMichael Elcock's winning Arthur and Kate Donnachie's frustrated Merlin make a sparky team but the show can't decide whether it's playing to kids or adults On this drizzly evening, the rose garden of St Paul's church twinkles with fairylights. Bunting laces the trees, and the grass is trodden with glitter. Iris theatre company's summer festival is the perfect set-up for a story steeped in magic and…
