Violet Signet of the Master Assassin

These rings are acquired through a quest line that involves gaining reputation with the Violet Eye. Gaining reputation can be done by raiding the Karazhan instance.

Other reputation-rewards for the Violet Eye can be found on the Violet Eye/Rewards page.

Questline
The questline to obtain these rings starts at Archmage Leryda who stands in front of the entrance to Karazhan.