It is unknown who built the Lost Pyramid or when. All that is known is that it was buried underground to hide the treasure. However, a button was left behind a sealed door in another pyramid that was able to raise the pyramid from under the ground. Captain Plunder hired The Per'fessor to translate the sacred texts that gave instructions on how to open the door. The Stone Guardian then appeared and fought Sonic the Hedgehog and Knuckles the Echidna while the Sky Pirates crept into the pyramid.