Science & information behind Hell Rising … more or less.
Though some events within the Hell Rising universe are beyond real-world explanation, (Vampires, anyone?) some factors are rooted in the very real, very weird world you and I inhabit. This includes, but is not limited to, the concept of a zombifying fungus that alters the mental state of its host/victim.
Fungus as a Weapon
Cordyceps Fungus in Modern
The Concept of Weather