‘What shall we do?’ said Twoflower.

‘Panic?’ stated Rincewind hopefully. He always kept that anxiety was the best means of survival.

As it techniques towards a seemingly inevitable collision with a malevolent red star, the Discworld could do having a hero. What it doesn’t need is usually a singularly inept and cowardly wizard, still dealing with the trauma of falling off the edge of the globe, or a well-meaning visitor and his luggage that includes a brain (and hip and legs) of its own. Which really is a shame because that’s all there is…