The Apex Hive is a massive Stem Slime colony that lays atop the previously disputed turf of several Stem Slime colonies. Imine Green has dubbed it a cease-fire region and uses it as a base of operations to teach Stem Slimes the Slime Rapture's plan.
Secretly built piece-by-piece by small E.G.G drones smuggling themselves in through the Stemrail portals in XX802, an experimental E.G.G dimensional teleporter brought Cinve and Dei onto Stem Island's farthest outskirts. They built a small outpost and started construction on a much larger teleporter to allow for the E.G.G's invasion fleet.
When the teleporter was almost complete, Unnun and a group of Lawmen descended on the secret base. Cinve was destroyed and brought back to the church, and Dei escaped back to the outer universe.
Though the station remained protected by a skeletal crew of Lawmen for several years, the abandoned outpost was taken over by a Stem Slime hive. The hive quickly grew to an enormous size and would come to become the main outpost for Imine Green's Slime Rapture movement.