The holocron detailed the life and philosophies of many ancient Sith Lords such as Naga Sadow, Marka Ragnos, Exar Kun, and Darth Revan. It also contained information on lightsaber techniques, and the several forbidden Force powers employed by the Sith of her day. Darth Sedriss lastly implanted the device with a lightsaber crystal she herself had used back in her days as a Sith. It was through this device that Darth Judicar learned much about the Sith prior to his time.