Fighting Fantasy - The Warlock of Firetop Mountain - Rules of Play says:

PART STORY, PART GAME - PURE ADVENTURE! Are YOU brave enough to take on the monsters and magic of Firetop Mountain.? The powerful warlock Zagor must be slain - but first you'll need to make it through the caverns of his mountain stronghold. Many adventurers before you have taken a wrong turn in the maze and perished at the hands and claws of the Warlock's gruesome servants. step up, hero, it's time to fight!