For sheer imaginative excess, Brand X's hellblazing new comedy is out on its own. Sarah Nield (script) and Paul Garner (direction, design) have been cult sensations at the Edinburgh Fringe for years. Their latest yarn - about executed Southern misfit Jethro Johnson's adventures in the underworld - offers vibrant, homemade stagecraft with puppetry, cartooning and hardrockin' power ballads.