The Hound of the Baskervilles

"'Hist!' cried Holmes. 'Look out! It's coming!' "I sprang to my feet, my mind paralysed by the dreadful shape which had sprung out upon us from the shadows of the fog. A hound it was, an enormous coal-black hound, but not such a hound as mortal eyes have ever seen."--Page 4 of cover.