I am hopeless at flint knapping.

All I managed to do with the obsidian was cut my hands, but Little Gnu said that was a difficult stone to work with and finally showed me a sample of the easiest stone to use for simple tools: a variety of chalcedony. “I’ve seen stuff like that in my mapping,” I said, and brought him a sample. “Yes,” he said excitedly. “Could you bring more? I will show you how we make our tools.”

I brought him an armload of the stone, and he produced a simple butchering tool so fast I could hardly follow what he was doing Then I tried.

It’s a good thing I had brought him plenty, because I spoiled at least half of what I had brought. I wonder if I could shape it with my mind?

Jarn’s Journal is the journal of a fictional human-like alien stranded in Africa roughly 125,000 years ago. He has been adopted as a god (much to his annoyance) by a group of primitive humans, and is using his esper abilities to map the continent. His story to date is on my author site.