The sacritorum caste was a segment of the culture on planet Rabolum apparently responsible for upholding the morals of their society. Members of the sacritorum caste had access to crystal-like devices that released chronometric particles that could induce hallucinations in its owners. Sharanna, a young technician attending tech school on Argelius II in 2371, was a member of this caste. (NF short story: "Through the Looking Glass")