''To that flash of semi-vision can be traced a full half of the horror which has ever since haunted us''An expedition to Antarctica goes horribly wrong as a group of explorers stumbles upon some mysterious ancient ruins, with devastating consequences. At the Mountains of Madness ranks among Lovecraft''s most terrifying novellas, and is a firm favourite among fans of classic horror.The Penguin English Library - collectable general readers'' editions of the best fiction in English, from the eighteenth century to the end of the Second World War.