Vampires - Telepathy

"There's no way of hunting him down telepathically, is there?" I asked as we paused for a break. All this crawling and crouching was exhausting. "Couldn't you search for his thoughts?"

The vampire shook his head. "I have no connection with Murlough," he said. "Tuning into a person's mental signals requires radarlike emissions on both sides." He held up his two index fingers about a foot apart. "Say this is me." He wiggled his right finger. "This is Mr. Tall." He wiggled the left. "Many years ago, we learned to recognize each other's mental waves. Now, if I want to find Mr. Tall, I emit a radar-like series of waves." He bent his right finger up and down. "When these signals connect with Hibernius, part of his mind automatically signals back, even if his conscious mind remains unaware of it."

"You mean you could find him even if he didn't want to be found?"

Mr. Crepsley nodded. "That is why most people refuse to share their wave identity. You should only reveal it to one you truly trust. Less than ten people on Earth can find me that way, or I them." He smiled thinly. "Needless to say, none of those ten is a vampaneze."

***

Cirque Du Freak: Tunnels of Blood, Chapter 18