Just One More Thing

Head to Nirobin's Research Tome at 58.47, 36.73 in Thaldraszus (near the Algeth'ar Academy area) to check your current progress toward completing a site's entry.

Only one 'Research:' world quest is active at a time, with roughly 3.5-day uptime on a semi-weekly reset. The six possible sites are: Lost Atheneum at 53, 47 in the Forbidden Reach; Winglord's Perch at 17, 16 in the Forbidden Reach; Gaze of Neltharion at 47, 51 in Zaralek Cavern; Igira's Watch at 39, 56 in Zaralek Cavern; Concord Observatory at 57, 44 in The Waking Shores; and the Riverbed at 67, 44 in Ohn'ahran Plains.

You must complete the same 'Research:' world quest three times — each time it returns in the rotation — to fill one complete site's entry and earn the achievement. The six Research world quests are not on a fixed rotation, so check the world quest board each reset and prioritize whichever Research quest you have already made progress on.

All three completions must be on the same character. Although the achievement itself tracks account-wide progress, completing the Research world quests on alternate characters does not advance your hidden quest progress — every alt tested flagged the same hidden quests as the main character.

To check which of the three hidden completions you have recorded for each site, use the in-game macro provided by the community that checks quest IDs 79596–79604 via C_QuestLog.IsQuestFlaggedCompleted. Run it in your chat box to see green (Done) or red (Not Done) for each step of each site. Once all three steps for one site show Done, the achievement completes and Reese goes directly to your bags.