[Machine Translation] The rules have been completely revised for the first time in 15 years to allow for more dramatic storytelling and role-playing. New rulebook is easier to understand and more terrifying! Also includes data conversion methods for using traditional sourcebooks and scenarios! Explains the rules for creating and role-playing stories, including creation of explorers, die rolls, combat, chases, sanity, sorcery, Cthulhu Mythos gods and creatures, and much more.