Kryptarium Prison

Kryptarium is a prison located in the Sea of Sand. It is a large building housing Ninjago's worst of the worst.

Inmates

 * Kruncha
 * Nuckal
 * Nindroid Warrior
 * No-Eyed Pete
 * Captain Soto
 * Hibiki

Shadow of Ronin
Shortly after Ronin stole the Ninja's memories, he order his goons to Kryptarium to abduct Hibiki. However the Ninja soon arrived and sent them in retreat.