“I extended my senses toward the shape, and found that what I had suspected was true. It wasn’t a real person, or an illusion masking a real person. It was only the seeming of one, a phantasm of shape and sound, a hologram that could see and hear and speak for its creator, wherever he or she was. “What are you doing?” it demanded. It must have sensed me feeling it out. “Checking your credentials,” I said, and sent some of my remaining will toward it, the sorcerous equivalent of a slap in the face. The image cried out in surprise and reeled back. “How did you do that?” it snarled. “I went to school.”