The birth of the Ratman hasn't been long.
According to the investigation of the clues exposed by Murphy and the players regarding the Scholar Faction, the real breakthrough in biological experimentation on Ratman basically happened around the time Explorer Kant joined the Scholar Faction, which is less than ten years ago.
Excluding the preparation time needed to perfect the genetic blueprint, the actual appearance of Ratman as a whole is probably less than three years, yet this creature, which can't even be called "civilization," has already accomplished many "great deeds."
The destruction of Shadow Elf Mejewa City was indeed their handiwork, and the fall of Black Flame Mountain Pass is intricately linked with the Ratman. Now, they're completing their third objective as a biological weapon, charging into the ruins of Brass Fortress, slaughtering the resistant Brass Dwarves to open the path for the Army of Dark Disaster to the Ligurian Peninsula.
This task is not an easy one.
