Trail of Cthulhu - Armitage Files

The Armitage Files is definitely a book anyone interested in running Trail of Cthulhu should own, especially if you want to try something new. But it proves without a shadow of doubt that its possible to improvise an investigative games if you are open to follow the advice given in the book -
Armitage Files offers a boldly innovative way to create blood-chilling adventures for Trail of Cthulhu, as players seize on clues presented in the ten mysterious documents. received from the future.