The Ascension of the Magdalene is a dual-system D20 / Unknown Armies roleplaying game supplement. It includes:
* Background on the historical setting of Prague, 1610 A.D., with conversion notes for any fantasy campaign. Warring factions such as the Rosicrucians, the Knights of Malta, Rabbi Loew and his Golem, and others are described with plot hooks for future use.
New D20 rules for Mechanomancy, a steampunk magic school that creates mechanical monsters; Avatars, a new form of magic based on archetypes of mass consciousness; and Renaissance firearms and armor.
Two new Unknown Armies archetypes, the Magus and the Rake, and notes on using this tale of the 17th Century Occult Underground in your modern UA campaign.