Shadow Vault Decree

The Shadow Vault Decree is provided as an objective for Shadow Vault Decree (quest).

Decree Text
"By order of Duke Lankral, Commander of the Knights of the Ebon Blade, Vanquisher of the Scourge and Conquerer of The Shadow Vault, you are hereby served notice to cease and desist from all activities providing material assistance, vrykul, and any other type of support to the Lich King. Failure to comply will result in your immediate destruction. My messenger will serve as the instrument of my will. What is your decision?"