2000 · ソースブック（プレイを拡張するルール／オプション）
Past, Present and Future
A collection of 20 illustrated encounters presents riddles and challenges set across fantasy, modern, and futuristic locations. Some encounters span all three settings, with puzzles ranging from deceptively simple to highly complex. The rooms can be added to adventures using any role-playing system.
ゲーム情報（人数、プレイ時間、対象年齢、クレジット）の出典：BoardGameGeek。