1978 · 资料书（用于增强玩法的规则/选项）
The Book of Mystery
An unverified generic fantasy role-playing supplement attributed to Bob Liddil. No reliable evidence confirms a separate publication; the material is instead most likely the sixth section of a 1983 compilation of fantasy gaming supplements, covering mystery-themed content for early fantasy role-playing.
免费，支持网页、Android 和 iOS
用 Ludoya 玩 The Book of Mystery
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。