8 out of 10, Old School! Thin on back-story, fleshed out in later products. Ran it once, teen-age power gamers, one & all. Of the three main characters in the party; one walked into the sphere of annihilation, one was reduced to ashes by the cursed crown and the last departed the tomb sex-changed and naked to get re-enforcements. Allowed a cameo appearance of a "Gamma World" character with micro-missile launcher and laser rifle. He died as soon as his weapons ran dry. The cavalry arrived, restored the bag of ashes to his former glory and took on the lich. Much real time later, the survivors collected the dead and the treasure and swore to never look for a lich again. Killer module to be sure, but never forgotten.