In a dark cathedral, a mage harnesses the power of demons to enhance her spells. In an alchemical laboratory, a diviner inscribes a scroll of destruction. Meanwhile, a bard and beastmaster seek out the prismatic dragon and golden lion to keep the forces of darkness at bay. Lux et Tenebrae (light and darkness) is the first Res Arcana expansion.

-New mages, magic items, monuments, places of power, and artifacts further expand the game.

-Lux et Tenebrae expands Res Arcana to 5 players

-Introduces two new object types: parchemins and Demons

-This is an expansion. A copy of Res Arcana is required to play.