Time is running out as the infamous pirate Vocini races toward the swampy ruins of a coastal outpost in search of a legendary weapon, the Cannon of the Blessed. The adventurers must find and assemble the fabled cannon and sink Vocini's flagship or risk being overwhelmed by his forces and tipping the balance of regional power. But danger lurks at every turn, as the Sea Witch's minions do not welcome trespassers to her swamp. This adventure is designed for 4-6 characters of levels 5-7 and includes 14 all new magical items and 7 from Wondrous & Perilous(TM) Treasures volumes 1 and 2. Designed for Old School fantasy systems including Old-School Essentials, OSIRIC, Basic Fantasy, B/X, AD&D, and more.