Mirror Earth Island

"It's generally advisable to keep a safe distance from molten magma, which is why the Monsters are stumped that anyone could have gotten close enough to carve a mini-volcano out of Earth Island's crust. The noxious green fumes that encircle Mirror Earth Island may well be a consequence of the volcano's construction and tampering with the natural order - but it's equally possible that they represent an apparent harmony between Earth and Poison."

Mirror Earth Island is the 5th natural Mirror Island. It can be bought for 500 when the player have reached Level 20.