2020 · ソースブック（プレイを拡張するルール／オプション）
She Who Rules the Sea
This roleplaying supplement details the Delphine Society, an invitation-only club for Chicago’s wealthy mercantile families whose original business interests have become entangled with spiritualism. It presents the society’s history, future plans, notable members, and the mysterious Dreadful Penny. The supplement provides scenario hooks, guidance for incorporating the organization into a Whispers in the Dark campaign, Gifts of Amphitrite, and a tough creature stat block. Most of the material is system-agnostic and can support campaigns set in the Gaslight Era.
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）ダイス（主にd20）
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。