The laser lit up for only an instant. Within that instant, it produced a ray invisible to the human eye and most eyes. So most of the human soldiers didn't see anything amiss.
Even the elves and other races that saw something thought that their eyes were playing tricks on them because the ray only appeared for a brief instant.
But everyone saw the lightning in the sky suddenly become enveloped by a large explosion.
The explosion of light, heat, and sound shook the sky. It dispersed the accumulating lightning and scattered the dark clouds.
The explosion lasted for nearly ten seconds. When it was over, everyone could finally see a tiny spark giving off its final radiance. They didn't know what had happened exactly, but they knew that regardless of what had happened, a demigod had just died.
Kelvin saw more than what they saw, but even he was confused.