Fort_Master_Gustav
Suddenly, the team heard a large roar. It was high pitched and animal-like. The sound came from approximately 200 meters in front of them.
The ash was a composite of fine concrete and iron, but also contained an unknown material. The small flakes would suggest that whatever it had been part of was exposed to massive stress and heat, letting parts of it go in clouds of superheated gas and liquid, burning flakes, which then went into the heavens, cooling and falling down yet again.