The ninth metal

It might have been the end of days. Instead it was the beginning of something shockingly new. They called the comet Cain, after the astronomer who discovered it. It passed 500,000 miles from Earth. We were spared planetary destruction and granted a light show like no other. But, one year later, Earth span into the debris field left by the comet and a meteor storm struck. Roads, buildings and even a small town were annihilated. The meteors impacted heavily around the dying mining town of Northfall, Minnesota. It was the night of a mysterious double murder, the deed overshadowed by the discovery that the burning remains of the rock contained an unknown substance more precious than gold: the Ninth Metal. And with that discovery, everything changed.