TheWoWDBThe cave to turn in the quest is at /way 54.02, 64.25 - it is down the bottom, not the big top cave.
Quest
What Once Was Ours
A World of Warcraft quest in Thaldraszus. Facts and objectives from the current retail game data.
The highest voted Wowhead comments for this page. They are community notes, not TheWoWDB comments.
Turn in at the building/cave with warded entrance.
The entrance looks more like a building (large arched door) than a cave, and as noted below has a blue "warding" curtain just inside.
Quest facts
LevelLevel 40-70
ZoneThaldraszus
Quest ID66468
The client quest POI data records no map location for this quest, so no map is shown.
Check whether you have already completed this quest
in-game: /run print(C_QuestLog.IsQuestFlaggedCompleted(66468))
Description
<Thadezus scoffs at your approach.> Are you a mortal of action, or are you going to get out of our way, {class}? I have lost many good soldiers to those Primalists up ahead. We have an idea of what they are planning, but we must first rout the enemy and rescue those serving under me.
Community notes from Wowhead · 9 comments
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Reward details
Reputation: Valdrakken Accord +100
Centered in their most ancient city, the Valdrakken Accord is the unified might of all dragonkind, seeking to protect not only their island home but all of Azeroth.
Reputation group: Dragonflight.
Other quests in Thaldraszus that reward Valdrakken Accord reputation: Preventative Maintenance (+100), For the Ward! (+100), Refti Retribution (+100), The Once and Future Team (+150), Time-Locked Timewalkers (+100), Cracks in Time (+100).
Item facts are the current retail client’s (ItemSparse); the specialisations for a pick-one item are the ones the Blizzard quest API lists; faction and currency text is the client’s own. Lowest listed price = the US commodity auction house now.