Oil. It’s rock oil that has caught afire. If it had drawn him to itself then it could draw others. Britt eased himself down on his heels and searched out every jittering shadow. The entire slope was alive with them and they seemed to flow and crawl, surfaces blazed and shone red and then disappeared as the flame sank to a sapphire blue and then rose again. As he sat he could smell sulfur and the reek of oil.
Interesting phenomenon
