From the back of the book: The Ghosts of Knapsford Hollow is a solitaire adventure for use with the Tunnels & Trolls' roleplaying system and was written with the Deluxe rules in mind. It is designed for up to 2nd level characters with no more than 25 combat adds from the roughly human-sized or smaller kindreds. It is quite a tough solo and comparative novice characters stand little chance of surviving the challenge within.