Source Suppliment for the most popular fantasy roleplaying game. Has your adventuring party ever wondered what was to be found on those parts of the map marked Here there be monsters ? Have you, as a GM ever been at a loss as to what to do if they decide to explore these hitherto uncharted regions? Have you, or your players ever wanted to play something a little more primitive? Lost Prehistorica could be the answer to your questions! An informative well presented tool-book for the GM who wants to try something that little bit different! Packed full of new playable races, information upon long lost cultures, lost continents, madic tribes and settings specific monsters, this book could be just what you need to spark a whole new range of adventures in a land untouched by time where disaurs still roam!