Yidhra is one of the Outer Gods of the Cthulhu Mythos, known as the "Dream Witch." She typically appears as a young, attractive human woman, and her appearance can change. Yidhra has existed on Earth since the first microbes emerged. She absorbs the life force, abilities, and memories of living things. This grants Yidhra "immortality," allowing her to take on the characteristics of any creature she devours. Yidhra can project visions of herself onto her followers. She is a beautiful Asian human woman, dressed in red, white, and black robes, with a delicate face and razor-long nails. In China, she mates with and kills young men provided by a female-led cult, giving birth to deformed offspring.