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The sludge monster is the lowest level legendary creature with a beautiful core and a foul smell. Some sludge monsters have cores that are more beautiful and full of energy than other gems, while others are just glass and difficult to distinguish on the outside. Therefore, they have gradually become extinct with the development of magic. After the rise of protectionism, no wild individual has been found. The cores of captive sludge monsters are usually made of glass or glass-like materials, and will not split on their own. They have no commercial value, but have high research value. While trading is prohibited, each one sells for about 300 million yuan. The price of a wild sludge monster is immeasurable - once discovered, it is likely to be the last one in the world. The reality is often so cruel that the biggest wish of most sludge monster researchers is that this last sludge monster "exists and will never be discovered." This is the only protection.

The world is like a dream of gods, only He can sleep forever. Praise the god of bed-ridden people.