On Tuesday, Netflix began releasing mysterious coordinates for a global event to promote the release of Stranger Things season 4. The post reads, “Something big is coming. Find your city, and that’s where we’ll be.” Well, now we finally know what those coordinates mean. Thanks to an exclusive report from IGN, we know that the coordinates are locations for rifts that will open to the Upside Down. Rifts are a portal to the Upside Down, once used by Eleven during an experiment in which she made contact with an inter-dimensional creature, the Demogorgon.