If you're 85 and just questing to get gear for your transmog set, to get this quest, you need to open it first. Going to Agnes in Iron Summit will only cause you confusion.
The quest chain starts at Thorium Advance. Don't go to Thorium Point. Go to Thorium Advance. Do all the quests at Thorium Advance (you'll be tickled at what Lunk does). This will unlock the quests to go to Thorium Point. Once at Thorium Point, do the quests. Don't go running off to do the Burning Steppes quests. Once you finish those quests, you'll unlock the quests at Iron Summit.
Learn from my mistake.
Quest
The Mysteries of the Fire-Gizzard
A World of Warcraft quest in Searing Gorge. Facts and objectives from the current retail game data.
The highest voted Wowhead comments for this page. They are community notes, not TheWoWDB comments.
"<Agnes starts to poke the gizzards with a stick>
Yes, very interesting. Very interesting indeed..."
Dark Iron Dwarf research at its finest.
To get this quest to open up you need to complete Thorium Point quests up to Dark Ministry. You will then be sent to Iron Summit to talk to the Mountain-Lord, once you do that you'll be able to get this quest.
Quest facts
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(28032))
Description
There's so much we don't know about the incendosaurs. Where did they come from? How do they survive out here on the flats? And why do they taste so bad? The key to understanding these prehistoric beasts, I believe, starts with the fire-gizzard. Every incendosaur has one. I'd like a few of them to study. You'll find incendosaurs circling the foot of Iron Summit, mostly to the west.
Community notes from Wowhead · 11 comments
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The top 3 are shown in Top Comments above. Read all 11 on Wowhead.
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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.