His name is Kraken and he is the chief of all guards. He is a skeleton whose soul looks like an azure fire that covers him. His kind of creature is called "ossadunt", but all of them are guardians of different places, such as the gates to hell or heaven, so they are simply called "guardians". He can create a space from the water underground in which he transforms into a huge octopus 100 feet in size, and this space destroys the souls of outsiders that enter there. He is over 2000 years old.