The Draw of Glenfallow

From the introduction: Pieron is a man who, by virtue of a strange pact and the drawing of a magical card, is now the lord of a keep which fell to monsters long ago. Monsters who still call the keep their home. Determined to claim his destiny, Pieron asks for aid from the player characters. Can you help Pieron claim his keep, land, and title? Clearing the keep of its monstrous occupants would be the beginning of Pieron's assent to wealth and power. Is the risk of facing so many monsterous foes worth having a friend in such a high station? Will you survive the challenge? Written for three to five characters, of first through third level.