JOSEPH MICHAEL LINSNER writes and draws two stories featuring characters that his die-hard fans have been asking about for years. In ''Hell Is Waiting,'' Sinful Suzi learns a lesson about the wages of sin. And in ''Burning Roses,'' Obsidian Stone loses an old friend and welcomes a new demon. This guilty pleasure is a long-overdue return to the B&W short stories that LINSNER started with in CRY FOR DAWN. Because if you are going to sin, then sin boldly!