Formless Fears! The Armitage Files presents a boldly innovative way to generate blood-chilling adventures for your Trail Of Cthulhu investigators. Players seize on clues presented in the ten mysterious documents, and choose which leads to track down. The Keeper, using step-by-step techniques introduced in this tome, improvises suitably mind-blasting mysteries in response to their choices. Weave these together into an epic campaign of madness, dread, and danger!