Alakazam! The fuel demon conjures up some fuel-saving tips for a wasteful family to help the war effort

Put that light out! And while you're at it, go easy on the coal and turn down the cooker. The fuel demon in this wartime public information short might be more smoke and mirrors than fire and brimstone, but his message is clear enough. The special effects are limited, but contrasting examples of energy wastage in the home with trick photography of factories and trains slowing down is effective.