From the back of the book: If you are looking for a role-playing game with more realism without burying you with charts, you've finally found it! It's 537 A.D. The British Isles have been freed of the Roman Conquerors, so naturally the Celtic Tribes have gone back to their traditional pastime of warring amongst themselves... To complicate matters, all of the monsters and 'Faerie' races of fable, myth and legend are still very much alive! Monsters and Slayers is different from anything you have ever seen!