2007 · シナリオ／アドベンチャー／モジュール
Ariadne's Necklace
During the great reconstruction of Alphatia in Mystara’s Hollow World, the decommissioning of the Spell of Preservation awakens the ancient Burrowers, vast Entropic creatures hostile to all life. As terror, madness, and death spread through the dreams of mortals, Alphatia extends its influence across the New World through a network of client and patron relationships, provoking rival powers. This d20 fantasy adventure is designed for four to six experienced characters of 12th-level equivalent.
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。