Slimes are Cannibals?

"The den is below me, but I do not know how far below. Every meter I phase through would be a thousand mana which means that I can only go down below 27 meters. Let us hope that the descent will be easy." Adrian muttered as he phased down the floor of the cave.

After about ten meters, Adrian finally saw the hollowed area that is the slime den. It was not something that he has imagined a slime den would look like. It was mostly rocky area that are dried out of moisture and slimes eating one another.

"Slimes are actually cannibals!" Adrian uttered as he immediately looked around the surroundings.

"I see. They are forced into cannibalism due to being locked inside this den, but slimes are said to be always wandering about looking for food. Does that mean that there is no way in or out of this place?" Adrian thought as he disabled his Soul Form Transformation so that his mana could regenerate.