Grom'tor, Son of Oronok is a level 70 quest giver located in the northern part of Coilskar Point in the contested territory of Shadowmoon Valley.
Close to him stands a naga named Coilskar Commander
He starts the following quests:
[70] The Cipher of Damnation - Grom'tor's Charge- [70] The Cipher of Damnation - The First Fragment Recovered
See List of Shadowmoon Valley NPCs.