|This location exists primarily or exclusively within the Sonic the Comic continuity.|
Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.
They were safe in the North Cave, the cold temperatures kept the Emeralds stable, until Captain Plunder stole them. After Sonic retrieved the Emeralds, he kept them in a special sub-zero temperature box in his secret base. Thus their location became a mystery once again.