The third "Hero's Journey" d20 Adventure.

An ancient evil walks the lands of Myrra once more, the Draconis priest Glymych. In his quest to resurrect his once-banished order of evil priests, Glymych seeks the Librum Draconis, a secret tome that details rites and rituals for summoning and binding the most powerful of all creatures: a dragon! In the long-forgotten ruins of the fortress Gryngurg, Player Characters must brave the denizens of the dungeon, the assassin-priests of Glymych's Order of the Black Rose, and even the wiles and trickery of the Librum itself.