The Crystal of Knowledge was a five-sided Kryptonian crystal used to create the Fortress of Solitude. It contained all the knowledge of the planet Krypton.
The Crystal of Knowledge was a five-sided Kryptonian crystal used to create the Fortress of Solitude. It contained all the knowledge of the planet Krypton.
The Crystal of Knowledge was a five-sided Kryptonian crystal used to create the Fortress of Solitude. It contained all the knowledge of the planet Krypton.