Lynne Truss's new comedy is about Welsh people, golf, rain, mysterious sudden death and yet more rain. Things are strange in this corner of Cymru. Like the truth about Auntie Susan no one got round to asking, even though Uncle Gwyn had thought of marrying her. (You'll soon twig it.) Then there's The Rock, a geological form in the shape of a golf ball, towering, massive, spherical, complete with dimples, its own clouds and a curse. When keen cartographer Jaci comes from distant Cardiff to inspect it the locals are apprehensive. No wonder.