The spread of disease in the Cat Empire, due to the inexperience of the doctors, leads the slow fall of the empire.
"(ง ͠° ل͜ °)ง the unseen donger is the deadliest" -Winston Churchill
The fungi is not ordinary fungi. It's radioactive fungi! The fungi mutates the infected cats, into Supercats! Cats with supernatural abilities, such as invisibility, super speed, poisonous-radioactive claws, and super vision.