'No...that time I DEFINITELY heard a voice...either there's someone else out there, or I'm REEEALLY nuts,' Chalcocite thought, watching as the gash on his leg slowly healed. As it began to close up, he pushed himself back onto his feet.

"I'm out here!" he shouted in the direction he thought he heard the voice coming from. He began waving his arms wildly, hoping that there really was someone out there who might spot him.