Aggamon's true origins are unknown. He may be a native of the Purple Dimension, or he may just have set it up as his own base. He commented, "In a thousand years, no captive has ever escaped through the Purple Veil!"—which may indicate that he has ruled there for a millennia.At some point, he began to bring natives of other dimensions to the Purple Dimension, and turned them into slaves, to mine the gems of that dimension. He trades the gems to others in exchange for power for himself.Two men stole the Purple Gem from Dr. Strange's Sanctum, and were pulled through the gem across the Purple Veil, where the were enslaved by Aggamon. Strange traveled to the Purple Dimension in order to free the two men. Aggamon agreed to return them to Earth, if Strange would take their place as prisoner. Dr.