|This location exists primarily or exclusively within the SatAM continuity.|
Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.
The Great Unknown is a vast empty wasteland filled with trenches, canyons, and mountains. It is where the Wolf Pack live.
Sonic, Sally, and Bunnie went to the Great Unknown, where they ran into the portal to the Void. There, Sally and Bunnie ended up being caught in it where they met Naugus, but the two girls managed to escape with the King thanks to Sonic, but the King had to return.