The Castle of Darkness

(From the back of the book) In the fabled Realm of Avalon, the great King Arthur keeps court at Camelot. The far reaches of his kingdom are terrorised by monstrous dragons and powerful warlocks, and the famous Knights of the Table Round set forth on quests of valour to combat the forces of evil. But YOU have been chosen for the most perilous mission of all. To penetrate the enchanted fortress of the dreaded Wizard Ansalom and rescue Queen Guinevere from his sorcery. To play your way through this adventure gamebook, you need two dice, a pencil and eraser - plus skill and luck to defeat the hideous creatures and horrible deathtraps that await you behind the fearsome walls of the Castle of Darkness...