Kassogtha is a Great Old One that is reported to be Cthulhu's sister and mate. She gave birth to Nctosa and Ncothulu. She is described as a writhing mass of tentacles. This article is a stub. You can help the The H.P. Lovecraft Wiki by expanding it. Retrieved from "https://lovecraft.fandom.com/wiki/Kassogtha?oldid=22519" Categories: Article stubs Great Old Ones Add category Cancel Save Community content is available under CC-BY-SA unless otherwise noted.