2003 · ソースブック（プレイを拡張するルール／オプション）
Shades of Gray
The third book in the six-book Orpheus series expands the setting with a recap of earlier events, guidance for using the series’ cinematic structure, and recommended films. It details spectres, pigment, and the forces characters may encounter, introduces the new Phantasm shade with its merits, flaws, and horrors, and presents recent plot developments. Storyteller-only chapters provide background information and several missions for using the new material. An errata section for the core book is also included.
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ダイスプール（目標に対して複数のダイスを振る）属性／ステータス制（STR、CON、PERなど）スキルベース（スキルを購入または獲得）
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。