The King in Yellow is a collection of short stories published in 1895 by Robert W. Chambers, featuring a fictional play that introduces elements like the "Yellow Sign," the city of Carcosa, and a mysterious entity called "the Stranger." The play serves as a source of forbidden knowledge, leading characters to madness. The work has influenced horror writers such as H.P. Lovecraft and resurfaced in popular culture, notably in HBO's True Detective. In late October 2025, YouTuber AverytheMayo shared a video about a Minecraft character exploring a mine, leading to Wifies creating a 40-minute ARG-style video titled "Searching for a World that Doesn't Exist," which gained over 15 million views within a month. This sparked a wave of fan art and engagement on social media, including a meme by X user @RachRatos that received over 40,000 likes. The ARG has inspired numerous memes and creative interpretations across platforms like TikTok.