Passione

Passione is the king of the rats and other vermin. He is one of the fifteen abhorred, a group of monsters in the planet of Castelan. Of the planet's fifteen months, he represents the first month. Likewise he is the first to be slain by Martin the White.

He is a demon, and the progenitor of a demonic subrace known simply as The Vermin of Darkness. He has a son known as Stickler, although not much is actually known of him.

Appearance
Passione is described in many texts as a puma with a face of a man and the hooves of a goat. Despite being the "king of the rats" he does not actually boast any rat features.

In other interpretations, Passione is described as having the body parts of other creatures, such as raccoons, bears and sheep. None of them appear to actually involve any rat body parts for an unknown reason.

Death
Passione had sent a massive wave of rats and bugs to invade and infest the kingdom of Lancorion all at once, leaving the kingdom in ruins as man, woman and child would be gnawed to death or die of infection. The king had sustained what he could, but the plagues were only beginning to settle. The earth was black with the color of rat fur, and the air was filled with the unbearable stench of the deceased, both men and rats.

Prince Martin of Olydan had arrived to Lancorion with an entire guild's worth of mages alongside him. The mages would use their elemental powers to wipe out the rats in large numbers. The pyromancers would send million of burning rats scurrying around, jumping into and covering canals. The hydromancers however would flush them out. The vermin would flee in terror and leave the kingdom.

Martin however was far from done, he would follow a magi rat, a special rat that was truly dedicated to the demon. Martin would follow the magi rat into the den of the beast. There Martin would face the feline demon by the entrance of the beast's cave.

The battle was quick and decisive, Passione had lunged, his long and sharp claws bared and ready to rip and tear off Martin's flesh and skin. But Martin was quick to react, and step back. The demon would land onto the stony ground beneath them, his claws stuck into the ground. Martin would then thrust his sharp metal blade down the demon's throat, killing Passione instantly.

Martin would then skin the beast, using his pelt as a trophy.