2001 · シナリオ／アドベンチャー／モジュール
The Horror Beneath
A d20 System fantasy adventure set in the World of Vallkan. Hired to investigate sinister events in the village of Scarborough, a party of 4–6 characters explores dangerous caves and uncovers a threat beneath the settlement. The adventure is designed for characters of levels 3–5 and includes everything needed to play, along with a preview of another book set in the same world.
スキルベース（スキルを購入または獲得）属性／ステータス制（STR、CON、PERなど）レベル制（XPを獲得してレベルアップ）
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。