Scarlet Night is an extremely poisonous red-coloured fungus found in Opal territory. Contact with Scarlet Night on bare skin will result in a swift and painful death. Victims of Scarlet Night are characterised by foam around their lips, blue faces, and blisters forming wherever the fungus made contact with the skin. However, if the fungus latches onto clothing, it will die in a couple of hours and become harmless to interact with. The dead fungus can then be used as a deterrent against various creatures, such as rats.