According to Legend, When this Universe Was Created, A Master Key was Forged to Lock Away All Ancient Secrets & Infinite Powers The Cosmos Had to Offer. The Key was then divided & cast into different circles of reality for safe keeping. These realities are joined together by one-way portals, or Dark Rifts, & only the individual who possesses a piece of the Master Key may cross the threshold into the next dimension. Upon crossing, the Dark Rift will seal itself & disappear. It is said.. .