Jim pulled into of Sharon's driveway, still wondering why she had not answered the phone. Noticing that her sport utility vehicle was not the drive (maybe she had to park around the corner, he thought), he became somewhat more concerned. Still, he figured it would turn out he'd just caught her in the shower or whatnot. He used his key to enter through her kitchen door. "Hey birthday girl! Guess who?" he called out loudly, but heard no response. "Sharon?" he said as he headed up the stairs to the second floor. "Hon?" he querried as he knocked softly and entered her bedroom. He found her bed empty; but then he noticed