An Anniversary is an Act 3 companion quest for Varric in Dragon Age II.
Acquisition[]
After completing the quest Haunted (you get it at the same time as acquiring Closure) if Varric is at 100% Friendship/Rivalry.
Walkthrough[]
Head back to the Hanged Man to speak with Varric. He remarks that it has been six years since he met Hawke, and tells them it has been an honour knowing them.
Rewards[]
You receive no rewards for completing the quest.