At the center of the universe, at the border between the light and the dark, stands Castle Grayskull. For countless ages the sorceress of Grayskull has kept this universe in harmony. But the armies of darkness do not rest, and the capture of Grayskull is ever most in their minds. To those who control Grayskull will come the power; the power to be supreme; the power to be almighty; the power to be Masters of the Universe!