Zombie Lords

From publisher blurb: A deranged cleric has been ostracized by society as well as the magical community he was once an integral part of. This rogue cleric has retreated to an abandoned island to continue with his disturbing experiments. He has created a spell to create a new and more deadly form of zombie to be used by him as super-soldiers to aid him in his dark works. The mission is for the adventurers to destroy this evil wizard, his experiments, laboratory, and to find and bring can this unique BOOK OF NECROMANTIC ARTS to their employers. Can the PCs stop the madman’s horde of zombies and giant living creatures and destroy this madman’s laboratory? Or, will the PCs become part of this lunatic’s undead army?