They dropped to the ground and scratched luxuriously. Scotty shook his head. "No audience, no ghost. Mighty interesting."
"I'm with you," Rick agreed. "Now, suppose the ghost had known we were going to be there. Would he perform for an audience of two?"
"Good question."
"We'll try for an answer tomorrow night," Rick stated. "Tomorrow we'll spread the word around town that we're going to be watching, and let's see what happens."
Scotty scooped up a pebble and tossed it into the creek as they crossed the bridge. "You're sold on the man-made idea, huh?"
"Aren't you?"
"I would be if I had the slightest clue about how a ghost can be produced. But this one baffles me. No darkened rooms, no ghost trumpets, no knocks on tables, not even a chain clanking. A puff of mist and the ghost appears. How is it done?"
Rick didn't know. He didn't even have an idea. "The pool bubbled," he remembered. "That's our only clue. Why did the pool bubble?"
"Essence of spook," Scotty replied. "Spook essence does that to water. Seriously, we poked in the bottom of the pool and found nothing."
"That doesn't mean there was nothing while the ghost was performing," Rick pointed out. "Only that no trace was left."