A Sith ritual possessed the power to transform a person's physical form into stone, trapping their spirit in perpetual agony. Ry Nymbis, a Sith apprentice, pilfered this ritual from the private quarters of his Sith Master, Darth Caldoth, with the intention of killing him. Nevertheless, Caldoth foresaw this treachery and modified the ritual's incantation to target the one who spoke it, instead of their chosen target. Consequently, when Nymbis performed the ritual, he became its victim.