Caste of Assassins:
This caste is comprised of those who kill strictly for pay; once evident throughout Gor, their existence has long been suppressed, though they still appear occasionally. They refuse to use poison to dispatch their enemies (they consider it the mark of an amateur) and are required by their caste codes to renounce all ties of friendship and family. In addition, they claim no Home Stone. Almost universally despised and feared by other castes. Their caste color is Black.
"You will see the black banner of the Caste of Assassins" Tarnsman of Gor, page 175