Thunder struck the sacred fire, and the old chief was dying and asked to be left alone.
Chen Yan, a doctor of geology, became the new chief of the primitive tribe. Within 72 hours, he must use science to rekindle the flame:
The tribesmen knelt down to worship their ancestors. He raised the flint and said, "This is called friction and heat generation!"
The beast attacked at night, and he drew a lever: "Give me a fulcrum!"
As winter approaches, he knocks on the rock formations: "There are hot springs underground and coal in the mountains!"
While other travelers were still drinking blood, his tribe had carved Newton's laws on the rock wall!
(Hard-core farming, the system only provides knowledge, no fantasy)
